14 best comparing water filtration systems

Product description

The RCC1UP-AK is an upgrade to the standard RCC7AK-UV system, equipped with a pre-installed booster pump to bring your water pressure up to the ideal level for the reverse osmosis process. The booster pump allows the system to function at the ideal level from production speed to drain ratio. The installation is DIY friendly for most users, with written, video, and tech support assistance if needed. Replacement filters are standard sized. The system comes with 1-year limited warranty, and lifetime technical support from iSpring in Atlanta, GA. Incoming Water Pressure: 30 PSI - 70 PSI. Operating water temperature range: 40 – 100 F. Maximum TDS: 750 ppm.

• QUALITY 7-STAGE FILTRATION: This Reverse Osmosis (RO) water filtration system removes up to 99% of over 1,000 harmful contaminants like chlorine, fluoride, lead (removes up to 98%), arsenic, asbestos, calcium, sodium, and more.
• BOOSTER PUMP: Reverse Osmosis produces filtered drinking water by pressurizing water molecules through RO membrane and leaving impurities out. Equipped with an electric booster pump enables standard RO performance regardless of pressure variations; delivering higher throughput with less wastewater in comparing to pumpless models.
• UV FILTER STAGE: The UV stage comes with a smart Flow Sensor Switch turns the UV unit on and off with 3 minutes delay automatically with water flow, saving power and lengthening the life of the UV lamp.
• FEATURES: Come with European-Style brushed nickel kitchen faucet with the rust-free finish. The 1st stage has see-through housing that enables convenient visual inspection of filter condition. Our water filter features 3 pre-filters (to remove large contaminants and protect RO filter from chemicals) (RO) filter (to remove contaminants down to 0.0001 microns), and (AK) filter to finally restore just the right proportion of healthy minerals and a natural balance
• DO-IT-YOURSELF INSTALLATION: Typically, in a couple of hours with industry-leading help just a phone call away. Fits under a standard kitchen sink, with all parts included and instructions and videos. For leak-free installation, simply push the tubing into quick-fitting connectors and lock; no threading pipes needed. iSpring water softener is equipped with quality components to ensure reliability and low maintenance for many years to come.

User questions & answers

Question:	Does this filter VOC's
Answer:	Hello, it is a 6 watt bulb. If you need further assistance, feel free to contact us directly by calling 1-800-880-4808 or e-mailing us at [email protected]. We are in the office from Monday-Friday from 8:00am-5:30pm PST. Best Regards, APEC Customer Service
Question:	I found a case/ complaint from the federal trade commission against iSpring. Does anyone know anything about this case
Answer:	Hello, the UV light becomes the 5th stage on the system. The UV light goes before the carbon post filter and the pH cartridge. If you need further assistance, feel free to contact us directly by calling 1-800-880-4808 or e-mailing us at [email protected]. We are in the office from Monday-Thursday from 8:00am-5:30pm PST. Best Regards, APEC Customer Service
Question:	Is there a version of this system with a larger tank
Answer:	Fittings are included, but can also be bought at your local hardware supply.
Question:	Can I place this in my basement and run multiple lines to different sinks throughout my house? If so, will I need something to boost the pressure
Answer:	I use it on 110 but i will ck the transformer to see if it can work on 220
Question:	does this system work on well water
Answer:	Yes, sure, you may add alkaline filter to 7 stage Ro system.if that, please search product ASIN B07TNHXWFH on Amazon.There is all parts you need. if you don't need UV filter, you may choose 6 stage RO with alklaine filter directly.product ASIN:B0787N749Y .
Question:	Will this remove viruses, bacteria, giardia, protozoa? basically all of the stuff from lake, pond or stream water in an emergency / off-grid setting
Answer:	USA brand and made in China.almost 80% Amazon goods is made in China.
Question:	What is the flow rate
Answer:	As I know, there is special faucet,there is 2-3 tubes inside, if that, you just need 1 faucet.
Question:	There was no fitting or connection from the purified water line to the faucet, do you have a fitting
Answer:	No Product Dimensions : 14.2 x 6.2 x 18.1 inches; 23.1 Pounds Item model number : RO5-UV Date First Available : June 25, 2019 Manufacturer : Geekpure ASIN : B07THVWQP7 Best Sellers Rank: #250,402 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #410 in Under-Sink & Countertop Filtration Customer Reviews: /* * Fix for UDP-1061. 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Question:	Where can you get replacement seals for the screw in side? Mine was missing them
Answer:	Yes we have one listed on Amazon. It is Amazon item number B0713WMRXW
Question:	There is no way what they sent me will seal water from escaping , am I missing something
Answer:	55W
Question:	The outlets are 1 inch. are they threaded? what is the thread pattern. 1 inch mip? 3/4 inch mip
Answer:	Bulb should be replaced every 9-12 months. Even if it is still shining after that it is not effective and actually killing bacteria.
Question:	will it change smell at all
Answer:	The weight of the package is 9 lbs and the size is 40"x 8"x 8". We do have 220V ballast for this so let us know when you make this purchase and I will include the 220 V ballasts. Thanks

Product features

Filtration Performance:

The RCC1UP-AK is a pressure-boosted, multi-layered filter system that removes over 1,000 different types of contaminants, including arsenic, asbestos, chlorine, hormones, fluoride, lead, mercury, sodium, and more. Boosting the water pressure can help the performance of the Reverse Osmosis filter stage increasing water production speed and reducing waste water. This is a suitable option when the home water pressure is low (below 40 PSI).

100 GPD Drinking Water System

The RCC1UP-AK long-lasting multilayer membrane, rated for up to 100 gallons per day, ensures that families of nearly any size will have clean drinking water available on demand.

Reinforced Transparent 1st Stage Housing

Provides an easy way to visually inspect the sediment filter and view the contaminants being removed from your water. With the transparent housing you will know it is time for a filter change before a problem occurs.

Quality Micron, Layered Protection

The advantage of having both 5-micron GAC & CTO filter is that the loose carbon (GAC) can trapping large contaminants, leaving only smaller ones to the CTO carbon block filter. This allows the CTO filter and RO membrane to function longer.

Leak-Free System & Online Supporting Videos

Push to connect fittings and color coordinated tubings simplify the installation process, and our DIY installation video and customer support are both readily available if needed.

• For APEC ESSENCE Series ROES-50, ROES-75, ROES-PH75, ROES-PHUV75, ROES-UV75 and ROES-UV75-SS models
• Nominal 5 micron rating GAC acid washed Carbon removes chlorine, odor and taste
• Friction-welded construction provides a reliable, no-leak seal
• Versatile & disposable inline filter housing design with 1/4 inch quick connect output
• Industry standard sized 10 inch Carbon filter

User questions & answers

Question:	So is it the 5th stage filter
Answer:	I put the base of the velcro on the outer diameter of the banjo body to hold the cable connection. I put the pickup on the head of my banjo where I won't be hitting it with my hand. I play it in a band about twice a month and it works pretty good.
Question:	Does this come with the new qc tee fitting
Answer:	There's a peel-off paper that exposes an adhesive patch on the disc. I wouldn't recommend sticking it on something like an acoustic guitar or violin.
Question:	It looks like there are a lot of equivalent carbon inline filters with the same specs available here on Amazon. Any reason why those couldn't be used
Answer:	Splice together and experiment with different locations
Question:	Where are these made
Answer:	They are about an inch or 2.5 cm.

Product features

Exceptional Performance

This APEC filter is made of GAC acid washed carbon which can effectively remove chlorine, odor and taste.

High Capacity

This polishing carbon filter can be used after the RO membrane, and can last up to 3 years with fewer filter change out.

Easy Filter Change-outs

This inline filter is featured with 1/4" quick-connect fittings, allowing easy connection and disconnection for change-out logistics. You can simply plug or unplug the tubing. No wrenches needed!

Integrated All-In-One Inline Filter

Cap and body of the inline filters are spin-welded together producing a smooth, consistent seal. The entire filter is disposable, reducing the chance of sediment, microorganism and biofilm build up.

Product description

As America's favorite brand of reverse osmosis systems, and backed by iSpring’s industry-leading customer support, the RCC7AK is unequaled in quality, performance, and durability. The system consists of 6-stage, layered filtration built around precision reverse osmosis (RO) technology that removes over 1000 different kinds of contaminants in order to provide the best home drinking water filtration available. Unlike some other systems, the combination of both GAC and CTO filters in the 2nd and 3rd stages provides extra layers of protection against harmful chemicals than CTO alone. It features a 75 gallon-per-day capacity RO membrane, which is larger than most in its class and provides the capacity to economically handle the drinking water needs of even a large family.



After flowing through the initial 5 stages of the iSpring RCC7 line of Reverse Osmosis filtering products, the RCC7AK model adds another Alkaline Remineralization (AK) stage. This stage is designed to restore the natural alkalinity and mineral balance of the water. The RO process effectively generates pure water but it also removes a few helpful minerals in the process. The red mineral stone portion of the AK filter adds back healthy minerals including not just calcium, but also other beneficial minerals, like magnesium, that other systems don't. The calcite portion of the filter neutralizes the pH of the RO water. And the water tastes better too. Because RO water is so pure, some people may find it tastes unnatural. Many people prefer the more natural taste that comes from the presence of some minerals in the water. Remineralization restores just the right proportion of healthy minerals.

Designed for do-it-yourself installation by most users, the entire system fits nicely under a standard kitchen sink. Installation is straightforward and all parts necessary for installation are included. You are guided by clear, well organized written instructions, instructional videos and access to iSpring’s unparalleled technical support. The system is quiet and low maintenance with no moving parts. Replacement filters are standard sized and sold at factory direct pricing. A lead-free, solid brass faucet with brushed nickel finish is included with the system and is usually mounted on the counter as the primary source of drinking water, but output lines can also be connected to your ice maker, coffee maker, etc. The whole system is backed by a 1-year money-back guarantee, a 1-year manufacturer warranty and iSpring's unique lifetime technical support provided right here in the USA in Alpharetta Georgia. With the iSpring RCC7AK, enjoy crisp-tasting, bottled quality water, every day, right in your home.

• Incoming Water Pressure: 45 PSI - 70 PSI
• Operating water temperature range: 40 – 100 °F
• Maximum TDS: 750 ppm

Install this RO system in a location where it is safe from hot/cold weather and direct sunlight. Avoid hitting, dropping, or dragging the system as this can cause cracks and leaks

• Certified to NSF/ANSI 58, 6-Stage Alkaline Remineralization Layered Filtration: Exclusively designed to restore the natural alkalinity and mineral balance of water; this reliable and ultra-safe Reverse Osmosis (RO) water filtration system converts your water into clean, pure and healthy drinking water by removing up to 99% of over 1, 000 harmful contaminants like chlorine, fluoride, lead (removes up to 98%), arsenic, asbestos, calcium, sodium and more.
• BENEFITS: The iSpring RCC7AK water softener includes an additional sixth stage - an Alkaline Remineralization filter which restores healthy minerals and produces a balanced alkalinity, which gives your water a more natural taste than regular 5 stage RO water filter; the RO membrane removes not only harmful pollutants but also a few helpful minerals. As a result, a standard 5 stage RO system produces slightly acidic water with a pH of 7. 0 or below
• FEATURES: Beautiful European-Style kitchen faucet. Transparent 1st stage housing for easy visual inspection. Three extra long life pre-filters to remove large contaminants and protect RO membrane. Ultra fine (RO) filter to remove contaminants down to 0. 0001 microns; fine GAC filter to provide final polishing to the purified water and (AK) filter to finally restore just the right proportion of healthy minerals and a natural alkaline balance. The end result is great-tasting bottled-water quality
• EASY DO IT YOURSELF INSTALLATION: The water purifier is designed for do-it-yourself installation and all necessary parts for installation are included, backed by clear, well-organized written instructions, instructional videos, and access to iSpring unparalleled technical support. The entire alkaline water filter fits nicely under a standard kitchen sink. For leak-free installation, simply push tubing ½ inch deep into quick-fitting connectors and lock; no threading pipes needed
• 100% SATISFIED CUSTOMERS: RCC7AK from America’s favorite brand of under sink water filter is the No. 1 rated reverse osmosis systems in the USA backed by iSpring extended manufacturer upon registration and lifetime personalized support from GA, USA, combined with premium quality components, this water filter is to deliver endless bottled quality drinking water right in your home for many years to come, eliminating plastic bottles

Product features

Reinforced Transparent 1st Stage Housing

Provides an easy way to visually inspect the sediment filter and view the contaminants being removed from your water. With the transparent housing you will know it is time for a filter change before a problem occurs.

Finest Micron, Layered Protection

The advantage of having both 5-micron GAC & CTO filters is that loose carbon (GAC, KDF) is better at trapping large contaminants, leaving only smaller ones to the CTO carbon block filter. This allows the CTO filter and RO membrane to function at their maximum efficiency and last longer.

Leak-Free System & Online Supporting Videos

Push to connect fittings and color coordinated tubings simplify the installation process and prevent leaking. We know that high percentage of our customers prefer Do-it-yourself installation. We are investing in video production and aftermarket platform to provide our customers the resources needed to have successful installation and maintenance.

Live Phone Support

We offer technical phone. Contact our expert support team for personal assistance in selecting the right system for your water filtration needs. Now, and years from now, we will be right here and ready to help.

Product description

A lightweight, versatile personal filtration system, the Sawyer MINI Water Filter fits in the palm of your hand and has a total field weight of just 2 ounces. Perfect for everything from camping with the kids to traveling abroad where tap and bottle water can't be trusted, the tiny MINI provides 0.1 micron absolute filtration for clean drinking water on the go — filtering out bacteria, protozoa, and microplastics. The MINI filter removes 7 log (99.99999%) of all bacteria (like salmonella) as well as other harmful bacteria which causes cholera and E. coli and 6 log (99.9999%) of all protozoa such as giardia and cryptosporidium. These removal rates equal or exceed other filter options. EPA guidelines allow ten times more protozoa left in the water than Sawyer MINI filters allow. The MINI also filters out 100% of microplastics. The MINI 0.1 micron absolute filter houses a cluster of micro-fibrous tubes which use similar technology found in medical dialysis. As water passes through the side walls of the tubes, harmful bacteria and protozoa are trapped on the outer walls so you can be confident your water is safe to drink. Great for outdoor recreation, hiking, camping, scouting, domestic and international travel, and emergency prepping, the Sawyer MINI gives you a number of ways to access clean water. Attach it to the included drinking pouch, use the included straw to drink directly from your water source, connect it to hydration pack tubing (sold separately), or screw it onto standard disposable bottles (28mm thread). Since 1984, Sawyer has used technological advancements to create products that keep you outdoors — from the backcountry to the backyard — including insect repellents for both skin and clothing, water filters for camping and emergencies, and sun protection.

• Ideal for outdoor recreation, hiking, camping, scouting, domestic and International travel, and emergency preparedness
• High-performance 0.1 Micron absolute inline filter fits in the palm of your hand and weighs just 2 ounces; 100% of MINI units individually tested three times to performance standards by Sawyer
• Attaches to included drinking pouch, standard disposable water bottles, hydration packs, or use the straw to drink directly from your water source
• Removes 99.99999% of all bacteria (salmonella, cholera, and E. coli); removes 99.9999% of all protozoa (such as giardia and cryptosporidium); also removes 100% of microplastics
• Filter rated up to 100,000 gallons; Includes one Sawyer MINI filter, 16-ounce reusable squeeze pouch, 7-inch drinking straw, and cleaning plunger

User questions & answers

Question:	Has the Sawyer Mini gone through End of Life testing in laboratories to ensure that it will ACTUALLY filter 100,000 gallons of water
Answer:	NO. Tap water has minerlas, salts, bacteria, etc. These pills only kill bacteria but filter nothing. All the minerals will stay in the water and will break your machine. Use distilled water.
Question:	What's the total weight of the full system? (Including the filter, tube, syringe, and pouch) It seems the listed 2 oz refers to the filter alone
Answer:	The front of the package states"Proven effective against Giardia lamblia when used as directed". The back states "Potable Aqua Germicidal Tablets have not been shown to inactivate Cryptosporidium cysts." Keri-Lynn, Four Seasons Survival
Question:	What is the shelf life for this? Used and properly cleaned or unopened
Answer:	I called the company and they said unopened, they expire in Jan. 2017. When the bottles are opened, they expire in one year.The product has no expiration or mfg. dates on the bottles.
Question:	Does this filter work with tannin in the water? Also, how about brackish water
Answer:	"The colder the water, the less effective the chemical is as a purifying agent. Research has shown that at 50 degrees F (10 degrees C), only 90 percent of Giardia cysts were inactivated after 30 minutes of exposure. If the water temperature is below 40 degrees F (4 degrees C), double the treatment time before drinking. It is best if water is at least 60 degrees F (16 degrees C) before treating. You can place the water in the sun to warm it before treating." - Rick Curtis, The Backpacker's Field Manual.Basically, wait longer: double time every 10 degrees F under 60 to be safest.

Product features

Sawyer MINI 0.1 Micron Water Filtration System

Sawyer's lightest and most versatile personal water filtration system, the conveniently compact, high-performance Sawyer MINI Water Filter is perfect for everything from camping with the kids to traveling abroad where tap and bottled water cannot be trusted.

The versatile MINI attaches to the included drinking pouch, standard disposable water bottles, and hydration packs — and you can drink directly from a water source with the included drinking straw.

• Removes 99.99999%* of all bacteria, such as salmonella, cholera, and E.coli
• Removes 99.9999%* of all protozoa, such as giardia and cryptosporidium
• Removes 100% of microplastics
• Filter rated up to 100,000 gallons
• * Independent testing by Laboratory Hydreion, LLC.; Microbiological Report S05-03
• † Independent testing by certified authorities Aquadiagnostics Laboratories and Envirotek Laboratories (S1 – 2512B-12512C; S3 – 12514-12514A), 2017

Ready for the Backcountry

The ultra-light, easily packable Sawyer MINI water filter fits in the palm of your hand and weighs just 2 ounces — making it ideal for ultralight backpacking and camping, as well as emergency preparedness.

Each MINI comes with a durable, collapsible 16-ounce reusable squeeze pouch that rolls up when empty, so it won't take up space in your pack.

Filtered Water Anywhere

The reusable 0.1 absolute micron MINI water filter produces clean water from freshwater lakes, rivers, and streams, as well as faucets in your home or hotel room while traveling (domestic and international).

The MINI also comes with a straw that enables you to drink filtered water directly from a water source.

Easy Drinking

To start filtering water, simply fill the squeeze pouch with water from your water source, then screw the MINI filter onto the pouch and start drinking right from the MINI or squeeze into a water bottle to share with others.

The MINI also screws onto water or soda bottles with a standard threaded top, and you can attach inline on a hydration pack to filter water from a bladder (sold separately).

Sawyer's International Mission

Sawyer believes everyone deserves access to clean water — from hikers in the backcountry to indigenous people groups in the remotest corners of the world.

For over 10 years, Sawyer has been working with a variety of charities and churches who are on a mission to make a long-lasting impact in the lives of those around the world without access to clean drinking water.

Hollow Fiber Membrane

Sawyer’s water filters are comprised of tiny hollow fiber membranes that allow water to enter into their core through tiny micro-pores.

Thicker fiber walls combined with a smaller inner diameter make Sawyer fibers 75% stronger* than typical hollow fiber membranes, giving you a fast flow and enabling the filter to be continually backwashed forcefully to restore up to 98% of the original flow rate.

* Clean Water Institute of Calvin University; July, 2018

1 Absolute Micron Filtering

Each Sawyer water filter features 0.1 micron absolute filtration, meaning there is no pore size larger than 0.1 micron in size.

This makes it nearly impossible for microplastics, harmful bacteria, protozoa, or cysts like E. coli, Giardia, Vibrio cholerae, and Salmonella typhi (which cause Cholera and Typhoid) to pass through.

Fiber Protection

Sawyer's hollow fiber membranes are fully encased and sealed to keep them protected. When fibers are not enclosed, physical damage of exposed fibers could allow harmful pathogens to pass through.

Tested 3 Times

Every Sawyer filter is performance tested three different times during the manufacturing process for your protection.

Testing occurs after the fiber element construction and twice after casing assembly to ensure no harmful pathogens leak through the sealed case or internal O-rings.

Product description

The WGB21B is a great "point of entry" filtration system and excellent alternative to the larger WGB22B (4. 5"X20") for smaller homes or where limited space may be a concern. Unlike "point of use" systems the WGB21B will filter water directly from your source. This means that water from every outlet in your home will have passed through this filter, providing up to 50, 000 gallons of clean water for the entire family. The first stage of this system houses a 5-micron high-capacity polypropylene sediment filter (FP15B). This filter is responsible for removing dirt, rust, and most suspended solids, to protect and extend the life of the CTO carbon block filter. The second stage houses the 5-micron CTO coconut shell carbon block filter (FC15B). Block carbon is more effective than other forms of carbon in that it is finely ground up carbon packed into a solidified block. This means they have a higher density than other types of carbon filters, and are therefore more effective in removing their targeted contaminants. The carbon block filter knocks out bad tastes and odors, removes over 90% of sediment and chlorine from the water, and is highly effective on organic chemicals (VOCs) like pesticides, herbicides, and industrial chemicals. If you are on city water, your local water utility must meet very strict Federal and State standards for purity. Almost all municipally treated water is chlorinated, and this can affect taste and create odors in the water. The WGB21B filtration system will remove these tastes and odors. If you are on a private well or spring, you should have your water tested. You may also want to contact our technical staff in Atltant, GA for help in selecting the best filter system for your water chemistry.

• [Two-Stage Effective Filtration] 1st-Stage premium 5-micron polypropylene sediment filter (FP15B) captures dirt, sand, silt, dust, rust, and scale particles and extends the life of CTO carbon block filter. Using high quality coconut shell carbon and highly compact fabrication tech, 2nd-stage CTO filter(FC15B) knocks out cloudiness as well as bad tastes and odors, removes over 90% of chlorine, and is highly effective on VOCs like pesticides, herbicides, and industrial solvents.
• [Superb Filtration Capacity] 10"x4. 5" replaceable whole house water filters can provide up to a full year of clean water(up to 50, 000 gallons) for a family of four. 1-inch inlet and outlet ports allow fast water flow with less pressure loss. Fine PP sediment filter and premium quality CTO filter not only bring clean and fresh water to every faucet in your house, but also help prolong the lives of your water-using appliances and protect plumbing from sediment and scale buildup.
• [Easy Installation and Filter Change] The system comes pre-assembled onto the mounting bracket for a streamlined, DIY installation. Filter wrench included to make routine filter changes easy and quick. A pressure release valve allows for the release of built-up pressure when changing filters. Refer to our manual and/or YouTube videos to Install this point-of-entry (POE) filtration system at the main water supply to get clean and healthy water for the entire family.
• [Top-Notch Customer Service] Backed by a 30-day money-back guarantee. 1-Year manufacturer warranty and extended upon registration at iSpring. Lifetime customer and tech support from Atlanta, GA.
• [TDS Note] Unlike an RO system, this system will NOT reduce Total Dissolved Solids (TDS), and instead keeps healthy minerals in your water. If you are interested in a filter that removes TDS, consider our iSpring Reverse Osmosis (RO) systems.

User questions & answers

Question:	How does this unit flow 15 gpm when the replacement filter states that it has a max flow of 3gpm
Answer:
Question:	What is the difference between this small whole house filter(10'') and big whole house system
Answer:
Question:	is flow left to right, right to left, or can it go either way
Answer:
Question:	I have a white build up on my coffee maker, will these filters stop it
Answer:

Product features

Frequently Asked Questions

Q: With this whole house system, do I still need to install a water softener if my water is very hard?

A: Yes, a water softener is needed if your source water has a high level of hardness, usually with TDS higher than 700 PPM. Hard water can reduce the lifespan of whole house water filter cartridges. The harder the water, the greater amount of scale buildup occurs, and the sooner the filters get clogged.

This whole house water filter can remove up to 95% of sediment, chlorine, rust, pesticides, herbicides, industrial solvents, VOCs, and various other contaminants that a regular water softener can't, although it does not soften your water. It is recommended that you install this WGB21B series whole house system after your water softener to achieve optimal performance if you have hard water.

To determine which product best suits your needs, it is recommended that you get a professional water test done prior to purchase to identify the main issue of your source water.

Note: Water Softeners and whole house systems usually do not lower the TDS level of the water. An additional Reverse Osmosis system may be necessary for your drinking water. Please consult iSpring professionals prior to purchase if you are unsure of which product will meet your needs.

Product description

Make the purest alkaline water with your own home system. Great in the kitchen: Improve the taste of your cooking, coffee, ice, and drinks. Experience true UV Reverse Osmosis purification and sterilization. Safe filtered fresh tasting H2O: Removes up to 99. 99% of contaminants including Lead, Chlorine, Fluoride, Cyanide, Giardia, Radium, Asbestos, Calcite, Heavy Metal, Bacteria, Viruses, Pharmaceuticals, and other major contaminants. Get setup fast with our Quick Connect tubing system. The UV light is equipped with a warning light that will alert you when the power of the UV falls below the germicidal range. Includes fast flow faucet with 0. 8 GPM delivery. A compact system made to fit under counter in a cabinet. Best for house, apartment, residential, well water, industrial, rv, machine, and office uses. Certified by an independent laboratory to NSF standard 58. UV-C Ultraviolet light kills viruses, organisms, and bacteria in your water. Comes with 4 gallon (3. 2 gallon water capacity) storage tank and tank stand. Includes all filters needed for setup and first 6 months of use. Can be wall / cabinet mounted or freestanding, made for indoor use. Can be installed undersink, in a basement or other remote locations, you may need additional tubing or a delivery pump depending on how far away you plan to install or if you plan to link to a refrigerator as well. For every one gallon of water produced the system discharges between one and three gallons (depending on the pressure and quality of your incoming water). The system is compatible with 3/8" and 1/2" under sink connections. Includes filter housing wrench. Operates on 40-80 PSI water pressure, you may need a Booster Pump or Pressure Regulator depending on your water pressure. The water is cleaner and more convenient than any pitcher, faucet filter, or countertop systems. Express Water’s 11 Stage Reverse Osmosis Alkaline Ultraviolet Water Filtration System ROALKUV10M is the complete solution for your drinking water.

• Reverse Osmosis Water Filter: Experience what water should taste like with the Express Water reverse osmosis water filtration system removing up to 99.99% of Lead, Chlorine, Fluoride, Nitrates, Calcium, Arsenic, Bacteria, and more
• UV Water Purification System: Powerful UV Sterilization eliminates coliform, E. Coli, viruses, bacteria, microorganisms, and more from your drinking water
• Alkaline Water Filter: Alkaline Filtration System with Active Mineral Technology adds Calcium, Potassium, Magnesium, and other minerals to your body needs right in your water
• Under Sink Water Filter: Don’t waste money on professional installation. Express Water’s quick and easy-to-understand design means you can install and understand everything about your new water filtration system
• Quality Guaranteed: Rest easy with our 1-year warranty on all Express Water Reverse Osmosis Water Systems
• Under Sink Water Filter System: No need to mess with refilling or activating your Alkaline UV water filter system, Express Water’s water filtration systems automatically fill your water tank with high quality drinking water
• Leak Detection: Each under sink water filter includes an emergency leak stop detector that shuts off water flow when it detects unwelcomed moisture

User questions & answers

Question:	Height required for installation
Answer:	Hello Coco LeRoux,As James M Groen previously commented, we would not recommended using a UV filter alone without another form of filtration preceding it since microorganisms can be shielded by other water contaminants. Kindest Regards,Alicia iSpring Water Systems | (678) 261-7611 M-F 9-5 EST
Question:	Does it make sence to upgrade this system with deionization filter when it has alkaline filter
Answer:	Smart Flow Sensor Switch powers on/off UV light automatically by water flow, so it must be installed after the storage tank where water flow is high enough, if you install it before the storage tank the water flow will be to slow for the Sensor Switch to turn the light on.
Question:	Is there an indicator that tells you when the filters need replacing, or do you guess ~6 months for uv light and the ph cartridge & 12 for membrane
Answer:	TWS is more powerful than ows. 55w compare to 40W. We normally suggest our customer install the OWS unit horizontally. Cause vertically installation might need extra support if the pipe is plastic. But that was not a problem for TWS system.
Question:	how many gallons of water is wasted to make 1 gallon of filtered water
Answer:	As long as you protect it from freezing, it has to be plugged in, we have it installed inside. We are on a well, have a sediment filter, a carbon filter then the UV water purifier installed in the same line. Going to get a test kit and test the water for bacteria and see how well it does.

Product features

Drink Healthy and Safe UV Sterilized Alkaline

Start drinking clean healthy water with the minerals you need (like Calcium, Magnesium and Potassium). We include 5 stages of mineralization in our water.

With powerful UV-C Disinfection, right in your home, you can ensure your water is always free from microorganisms.

Choose mineralized alkaline water with powerful UV protection for your water and start drinking healthy today!

Unique Features

Express Water offers several features unique to this system

• Double Sealed Filters to preserve your filters and your kitchen. Each filter is double sealed to provide the best filtration efficiency and value.
• Our Leak Stop Valve shuts off water flow if excess water is detected. A fabric disk stays in contact with the floor beside your system. If for any reason water is absorbed the flow to your system is stopped.
• Included Brass Feed Adapter and Quick Connect Adapter means no going to the hardware store to buy parts. The feed adapter fits the two most common sizes of under sink pipes 1/2" and 3/8".

Save Your Time

Filter changes are quick and easy with simple design and clear labels

• Your pre-filters are swapped out only twice a year: Sediment, Carbon Block, Granular Activated Carbon
• The others are replaced only once a year: RO Membrane, Post Carbon, Alkaline
• Our Quick Connect system is fast, easy, and helps prevent leaks
• A labeled color matched system so you know what goes where at a glance

Water When You Need It

With efficient filtration and quick delivery get your water fast.

• Chrome faucet with brass water way for pure water delivery
• Fast Flow Rate: Get your water fast. Water through your faucet at 0.8 GPM!
• Always Ready: This system can produce 100 gallons of pure water a day
• An adult should drink 0.5-1.55 gallons of water a day. Makes more than enough water for the whole family!

Here to Help

Our water technicians are here to answer any questions you may have about your system or your home’s water in general. If you run into a question or problem, we want to help you through it. We’re not happy unless you are.

• Have any questions about your system or your home’s water answered by experts
• Questions before buying? Just give us a call!

Product description

The APEC3 stage water filtration system delivers clean filtered water at an affordable price. This complete 3-stage water filter system is made from high Caliber components to offer long-lasting, reliable performance. The three premium quality filters lasts over 12 months for fewer filter change outs and high performance. Designed and assemble in the USA, the system provides a continuous on demand supply of quality filtered water directly to your tap. • 1st stage: high-grade 10 inch high-capacity polypropylene sediment filter -removes dust, particles, and rust. 100% pure polypropylene depth filter with exceptional dirt-holding capacity translates to longer life and fewer change-outs than existing string-wound or resin-bonded filters. • 2nd stage: premium extruded carbon block 10 inch -gets rid of unpleasant chlorine, tastes, odors, cloudiness and colors. Also removes vocs and other common chemicals from the water. • 3rd stage: premium extruded carbon block 10 inch - further removes chlorine, tastes, odors, and other common chemicals from the water to provide great filtered water.

• High quality, designed, engineered and assembled in the USA; System built with US MADE super capacity filters for long lasting dependable filtration
• Guaranteed to remove chemicals (i.e. chlorine), taste and odors. NOT designed for TDS removal
• Premium long-lasting filters used to treat tap water, well water. Provide unlimited refreshing water
• 1 year satisfaction guarantee, with lifetime support by certified WQA water specialist based in CA
• System comes with 100% Lead-Free chrome faucet, odorless, chlorine-free clean water
• Feed Water Pressure: 20-85 psi

User questions & answers

Question:	Can the outlet be adapted to standard plumbing? i plan to mount this away from the sink and already have 1/2" pex plumbing to connect to
Answer:	Yes. I did that today when I installed the water filter. Due to the way my 1/2" PEX plumbing was set up, I had to install a 1/2" shut-off valve that reduces to a 3/8" male thread in one unit. I added a 3/8" reducer to 1/4" to hook up the tubing from this kit. Make sure you install a shut-off valve between the water filter and the PEX line because you need to isolate the water filter on both sides when you replace the filters.
Question:	Will this system remove copper from my water? My tap water tests dangerously high in copper and I need to filter it out
Answer:	Hello, the WFS-1000 unit is designed to remove sediment particulates and chemical compounds from a water source, not heavy metals such as copper. To help remove copper efficiently please consider our reverse osmosis filtration systems for reference. If you need any help or assistance, feel free to give us a call we are happy to help! Best Regards, APEC Support Team 800-880-4808.
Question:	What size and quality tubing does this system need? It is 1/4 or 3/8". What size T valve does it need to connect under the sink to cold water side
Answer:	The system comes with 1/4" food grading tubing for the connection. It also includes a feed water adapter that routes the water from the cold water line to the system. After the water is filtered, it is routed to a dedicated water dispenser for usage.
Question:	Does this system remove fluoride and lead
Answer:	Hello, no the WFS-1000 system is designed to remove chemical compounds and sediment from a water source. To help remove fluoride, lead, and other heavy metals, please consider our Reverse Osmosis filtration systems such as the ROES-50 and RO-90. If you need any help or assistance, feel free to give us a call we are happy to help! Best Regards, APEC Support Team 800-880-4808.

Product features

Super Capacity Filters

Three premium U.S. made super capacity filters last over 12 months for fewer filter changes and higher performance.

Fast Water Flow & No Tank Needed

Enjoy clean, filtered water instantly. This 3 stage system filters water quickly to your faucet.

No Rinse Water

This system does not waste water or require regular filter flushing, so all of the water going into the system goes straight into your cup.

Keep Important Minerals

Removes chemicals, tastes, odors, and VOCs from your water while still keeping important minerals and alkalinity!

Product description

The RCC7AK-UV consists of 7-stage, layered filtration built around reverse osmosis (RO) technology that removes over 1000+ different kinds of contaminants. The combination of both GAC and CTO filters in the 2nd and 3rd stages provides more protection against harmful chemicals than CTO alone. It features a 75 gallon-per-day capacity RO membrane, it can handle the drinking water needs of even a large family

• Certified to NSF/ANSI 58, this Reverse Osmosis under sink mounted water filter and Point-of-use water softener contains 7 different stages of filtration to remove up to 99% of over 1,000 contaminants, including lead (removes up to 98% of lead), chlorine, fluoride, arsenic, asbestos, calcium, and sodium and more.
• With its advanced 11 watt UV stage, the RCC7AK-UV is a suitable option to deal with all kinds of viruses including from well water and other unreliable water sources like lakes and streams. Our unique flow sensor switch turns the UV unit on and off automatically with water flow, saving power and lengthening the life of the UV lamp.
• Reverse Osmosis (RO) removes not only harmful pollutants but also a few helpful minerals. The Alkaline Remineralization (AK) filter restores healthy minerals and a natural alkaline balance, also producing a more natural taste that comes from the presence of the right balance of these minerals.
• Quality components ensure reliability and low maintenance for many years to come. Clear see-through 1st stage housing makes filter inspection a snap.
• Feed Water pH - 3.0 -11.0. Feed Water Pressure - 45-70 psi. Feed Water Temperature- 40-100 F (4 - 38 C)

User questions & answers

Question:	does this unit remove asbestos crystals from the water
Answer:	Not that it says on the container
Question:	I just ordered mine today, does it have the pressure switch
Answer:	Yes, worked well brining mine back to life
Question:	So does the current version of this product contain the pressure switch for turning the UV filter on and off
Answer:	After mixing with water per the instructions it can be applied by brush and or pump sprayer. I used the pump sprayer and a soft bristled broom to spread out any puddles for the horizontal surfaces and brush for the vertical.
Question:	Does this model have the UV Sensor to turn on and off the UV light when not in use
Answer:	Unsure, I don't believe meant to be painted over

Product features

RCC7AK-UV Performance

The RCC7AK-UV is a multi-layered filter system that removes over 1,000 different types of contaminants, including arsenic, asbestos, chlorine, fluoride, lead, mercury, sodium, and more.

Featuring some of the longest-lasting filters in the industry, The filtration system consists of 7 processing stages, each one designed to progressively remove contaminants and improve water quality:

Reinforced Transparent 1st Stage Housing

The RCC7AK-UV is a multi-layered filter system that removes over 1,000 different types of contaminants, including arsenic, asbestos, chlorine, fluoride, lead, mercury, sodium and more.

Finest Micron, Layered Protection

The advantage of having both 5-micron GAC & CTO filter is that the loose carbon (GAC) can trapping large contaminants, leaving only smaller ones to the CTO carbon block filter. This allows the CTO filter and RO membrane to last longer.

Leak-Free System & Online Supporting Videos

Push to connect fittings and color coordinated tubings simplify the installation process. We know that high percentage of our customers prefer Do-it-yourself installation. We are investing in video production to provide our customers the resources needed to have successful installation and maintenance.

Live Phone Support

We offer technical phone support Monday thru Friday between the hours of 8:30am to 5:30pm Eastern time. Contact our expert support team for personal assistance in selecting the right system for your water filtration needs. Now, and years from now, we will be right here and ready to help.

Product description

This 3-stage filter system is designed for easy installation, low maintenance, and features dual carbon block filters along with a high-capacity sediment filter. The sediment filter protects and extends the life of your system, while the carbon block filters work to remove many harmful contaminants like chloramine, providing you with bottled quality water on demand.

• [High efficiency filtration system]: The water flows through PP sediment filtration, dual CTO carbon filtration, and the 2nd layer contains unique GAC filtration. It removes common sediments in drinking water, like dust, sand, particles, dirt and rust. Effectively removes lead, arsenic, heavy metals and harmful chemicals cloudiness and colors and more. It removes not only harmful pollutants but also chlorine taste and odour.
• [Fresh Healthy Water Supplier]: The on-demand fast flow rate of the iSpring US31 allows it to meet the widest possible range of needs in your home. Up to 20x more effective than the common water pitcher dispenser. Flow Rate: Up to 1GPM depending on source water pressure. Maxim Pressure: 90psi. It washes fresh produce like fruit and vegetables, brings health protection, can provide your entire family with delicious, clean water straight from your tap.
• [Excellent Quality and Design]: Features beautiful European-designed brushed nickel all-metal faucet and clear see-through 1st stage housing. Clear see-through 1st stage housing makes filter inspection a snap. Manufactured to comply strictly with FDA standards and tested by independent third party against NSF/ANSI standards (42, 53, 61) for water quality, material safety and structural integrity.
• [Easy to Install and Maintain]: This system is designed for easy installation, low maintenance, and features dual carbon block filters along with a high-capacity sediment filter. The sediment filter protects and extends the life of your system, while the carbon block filters work to remove many harmful contaminants a. You can replace the filter every 6 to 12 months, judged by the water’s taste.
• [Customer Services]: Backed by a 1-year Manufacturer with lifetime support from Atlanta, GA USA. For any issue or concern, please don't hesitate to contact us.

User questions & answers

Question:	It seems like this 3 stage filter used to have gac and cto. what is the main reason for using ctos instead of gac and cto
Answer:	It lowers the price compared to products that really do include a GAC filter.
Question:	Will this filter setup lower my ppm
Answer:	It will not. You need a reverse osmosis system to lower TDS such as our RCC7AK. ISpring Water Systems
Question:	Hi, does this inhibit limescale
Answer:	Hi, This system is for drinking water and cooking water only. For reduction of scale buildup we would recommend our whole house water filters, or ED2000 electronic descaler. Thank you, iSpring Water Systems LLC
Question:	Is this considered a gac system? will it remove pfas
Answer:	It says "and the 2nd layer contains unique GAC filtration", but it looks like they removed the GAC filter from the shipping product, but left references in, making it misleading and confusing.

Product description

The Watts Inline Filter works with all water supply using ¼ inch lines and is perfect for residential and commercial ice makers as well as refrigerators, drinking fountains, coffee and tea brewers, motor homes and campers. This high capacity inline filter is certified for 20,000 gallons and is WQA certified for the reduction of chlorine taste and odors. The filter is easy-to-install and helps reduce scale build-up in appliances.

• Designed for use with refrigerators, ice-makers, RV, campers, boats, water fountains, water coolers, and commercial coffee makers
• Compatible with all water supply using 1/4 inch lines. Easily connects to existing plumbing
• Includes one 10” KDF Inline Filter and two 1/4 inch brass connectors
• Reduces sediment and other particulates for better tasting drinking water. NSF Listed, Certified by WQA to NSF/ANSI 372 Lead Free and NSF/ANSI Standard 42
• Recommended replacement every 6 months or 20,000 gallons

User questions & answers

Question:	I purchased this filter 5 years ago. Back then it showed 5 years/20,ooo gal warrenty. This one shows 1 year/20,000 gal. warrenty. Anyone know why
Answer:	Only the door with the handle slides. The glass pane with the towel rod is fixed. Standing in front, the right door slides and the left side is fixed.
Question:	will this filter work in my Frigidaire Gallery side by side fridge
Answer:	No. My doors were the same in length and width. The only surprise was that one door was stationary which just happen to work okay for me due to the layout of my bathroom. The only inconvenience is that it is harder to clean.
Question:	Does the filter actually need to be mounted to a wall, or will it function normally laying on the ground behind the fridge
Answer:	Yep, It’s reversible. Just flip the glass.
Question:	I had the gold Argenion 20,000 gallon filter for my fridge that has 1/4 in male ends. Will this work with my 1/4 in female threaded ends I have
Answer:	Unfortunately, this door will not work. If you modify the door down to a 40" wide opening, your actual walk through will be too small. We would advise you to look at a DreamLine Unidoor or a DreamLine Elegance as some possible options. We invite you to contact our DreamLine Customer Support Team at 866-731-2244 to discuss this further. We can also be reached by sending an email to [email protected]. Our hours of operation are 8am-7pm EST, Monday through Friday and Saturday from 9am-5pm EST. Thank you for considering DreamLine!

Product description

Heavy duty iSpring premium quality 4. 5 in x 10 in PP filter and CTO filter - 2 sets of a FP15B sediment filter and a FC15B CTO filter. Official replacement filter cartridges for iSpring whole house water filtration system WGB21B. Fits whole house water systems that use standard 10" x 4.5" replacement filter cartridges.

• [Exceptional Filter Life] This filter pack can filter up to 50,000 gallons depending on the use and feed water quality. Replace the filters every 3-6 months to achieve optimal performance. Fine PP sediment filters and premium quality CTO filters not only bring clean and refreshing water to every faucet in your home, but also help prolong the lives of your water-using appliances and protect plumbing from sediment and scale buildup.
• [Premium Quality Material and Multi-layer Density Tech] Complying strictly with FDA standard (CFR-Part 177) and tested by independent third party against NSF/ANSI standard((NSF/ANSI 42) for material safety and water quality, iSpring premium 5-micron polypropylene sediment filter (FP15B) captures dirt, sand, silt, dust, rust, and scale particles and extends the life of CTO carbon block filter. The polypropylene construction provides superior chemical resistance and is not prone to bacterial attack.
• [Highly Activated Carbon Block CTO Filter] Using high quality coconut shell carbon and highly compact fabrication tech, iSpring CTO filter(FC15B) knocks out cloudiness as well as bad tastes and odors, removes up to 99% of chlorine, and is highly effective on organic compounds like herbicides, and industrial solvents) and other contaminants like trihalomethanes.
• [Great Compatibility] This filter pack consists of two 10"x4.5"Sediment Filters(FP15B) and two 10"x4.5" CTO filters(FC15B). Official replacement filter cartridges for iSpring whole house water filtration system WGB21B. Fits standard 10" big blue whole house water filtration systems. Individually sealed for freshness.
• [Peace-of-Mind Customer Support] Your risk-free shopping experience is backed by a 30-day money-back , extended manufacturer, and lifetime CS and tech support from iSpring in Atlanta, GA.

Product features

Safe Water For the Ones You Love

• Save on your water bill - the filters won’t produce any wastewater.
• Official replacement filter cartridges for iSpring Whole House Water Filtration System WGB21B; 2 FP15B and 2 FC15B included.
• Fits standard 10” x 4.5” filter housings.
• Unlike an RO membrane, the CTO filters don’t reduce Total Dissolved Solids (TDS). They keep healthy minerals in your water instead. If you are interested in a filter that removes TDS, consider our iSpring Reverse Osmosis (RO) systems such as RCC7 series and tankless RO systems like RO500.

Product description

Product Description The US-600A fits compactly and installs easily on a 3/8" cold water line under the counter for convenient access to filtered water from the existing kitchen faucet. The unit is designed with an integrated mounting bracket for added installation ease. D-20A cartridge, plastic tubing and installation hardware included From the Manufacturer The Culligan US-600A slim design of this undersink water filter unit works well in tight spaces. The water filter includes quick connect fittings and tubing hardware for quick and easy installation. The included Culligan D-20 cartridge provides clear, clean water for drinking or cooking. Compatible with multiple cartridges. The filter includes a 5 year warranty.

From the Manufacturer

The Culligan US-600A slim design of this undersink water filter unit works well in tight spaces. The water filter includes quick connect fittings and tubing hardware for quick and easy installation. The included Culligan D-20 cartridge provides clear, clean water for drinking or cooking. Compatible with multiple cartridges. The filter includes a 5 year warranty.

• Provide your family with visibly clean, great-tasting water for drinking, cooking and more
• FEATURES: Included D-20A filter cartridge reduces chloride, bad taste/odor; Flow rate of 1 gpm at 60 psi; Includes filter housing assembly w/ mounting bracket, 3/8-inch tubing, 2 quick-connect elbows, SW-5A housing wrench, and D-20A filter cartridge
• COMPATIBILITY: Culligan D-10A, D-20A, D-30A and D-40A replacement cartridges
• FILTER CARTRIDGE LIFE: Up to 12 months or 1,000 gallons, depending on usage and filtration load; Comes with a 5-year warranty
• CERTIFICATION: The US-600A with D-20A is tested and certified by IAPMO against NSF/ANSI Standard 42 for the reduction of aesthetic chlorine taste and odor

User questions & answers

Question:	Does it filter well water
Answer:	When I ordered mine, three different combinations of three colors each were on offer. I bought them all and now have 9 different inks.
Question:	I am only needing the filter for the Culligan 600A water filtration, so can it be either of the ones shown on this page
Answer:	Hello. Thank you very much.This 3 color are set up by maker already. it is impossible to select by customer.The color are AS・SNK・YB. Please kindly understand. thank you
Question:	What are the product dimensions
Answer:	The bottle opening is not wide enough for every pen. A thicker pen will have trouble. Keep in mind these are sample bottles, and not full-sized. Think of 'em as "cute." Something like a Montblanc 149? forget it. My parker 51 had no trouble. Think my Conklin sleeve filler did.
Question:	In France we have very hard water. Lots of calcium. It's so bad it literally destroy's coffee makers. Does this filter remove calcium
Answer:	Try this on a spare envelope: 1) Write anything using the ink in question 2) Lightly spray the lettering area from at least 8 inches away with aerosol hair spray (not pump!) or mat fixative spray used on charcoal/pastel drawings 3) Wait for spray yo dry & attempt to smear 4) Spray & retry if any smearing occurs 5) Remember, inks should never be used in place of Kevlar vests! ;)

Product features

US-600A Inline Drinking Water Filtration System

The advantage to using an inline under sink filter is that you have the ability to now filter 100% of the cold water running to your faucet. No more filling up outdated pitchers or purchasing heavy packages of water bottles you have to drag home from the store. Just turn on the water for immediate use.

When preparing a meal, using filtered water also lends itself to the health conscious individual who first rinses meat, or cleans their fruits and vegetables of herbicides and pesticides.

Why Use A Water Filter System

From bad taste, chlorine and even lead, tap water is not always safe. Filtering your water removes contaminates and provides clean, better tasting water. Using a drinking water system is a more effective way to provide cleaner, better tasting water for your household.

Advantages

Have clean, pure drinking water for your entire family. Culligan under sink water filters are less expensive and less hassle than bottled water. Enjoy more flavorful coffee and drinks.

Independently Tested

The US-600A is tested by IAMPO to NSF for the aesthetic reduction of Chlorine Taste and Odor, Chloramines and Nominal Particulate Class 1. Standard 53 for the reduction of Cysts, Lead, Mercury, VOC, MTBE and Turbidity.

*Disclaimer: These IAMPO Official Listings are current as of Thursday, January 23, 2020 at 12:15 a.m. Eastern Time.

Product description

Simpler and more compact than Reverse Osmosis systems, the CU-A4 is an excellent choice for most general water filtration applications. The advanced 4-stage design of the CU-A4, featuring a unique combination of Activated Carbon, Ultra Filtration and KDF filters, virtually eliminates a wide variety of unhealthy contaminants, including bacteria, algae, fungi, giardia, lead, arsenic, iron, nickel, chromium, cadmium, calcium, aluminum, mercury, chlorine and chlorine treatment by-products, pesticides, hydrogen sulfide and other organic compounds. You experience safer, healthier and better-tasting water, without the hassle, expense and negative environmental impact of bottled water. The CU-A4 is flexible, quiet and durable. It has no moving parts and is very easy to maintain – only requiring occasional filter replacement. spring's high-capacity, high-performance filters last up to twice as long as other filters and provide maximum water flow – a difference you’ll notice when you turn on the faucet. The spring “Twist on / Twist off” filter design means changing filters couldn’t be easier. A lead-free faucet with beautiful finish, included with the system, is usually mounted on the counter as the primary source of drinking water, but with a wide range of optional parts and accessories, the CU-A4 easily adapts to fit nearly any refrigerator or ice maker connection. Contact spring directly and speak with a product specialist, to make sure you get the right filter options for your needs. We know that many customers prefer do-it-yourself installation, so the CU-A4 has been designed from the ground up to be easy for most users to install themselves, using readily available tools. Our push-to-connect fittings and color-coded tubing simplify the installation process and minimize the possibility of leaks. A well-organized instruction manual guides you step-by-step through the entire installation and testing process. If you do run into an issue, or get stuck, our technical support team is ready to assist you, Monday thru Friday between the hours of 9am to 5pm Eastern time. The whole system is backed by a 1-year money-back , a 1-year manufacturer and spring's unique lifetime technical support provided right here in the USA in Alpharetta Georgia. So, if you have a need to reduce overall dissolved solids in the water (reduce TDS) or to remove heavy concentrations of harmful metals like lead or copper, then an Reverse Osmosis system like the spring RCC7 is recommended. But for all-around high-performance water filtration, or where space is at a premium, the CU-A4 is the best, most economical and flexible choice for clean, fresh, great-tasting water instantly. NOTE: If you plan to use the CU-A4 as an inline filter (meaning using it without the included air-gap faucet), your incoming water pressure needs to be 40 PSI or below. If it is above that, a 40 PSI pressure regulator (APR40) should be installed on the input line to keep the pressure on the system at 40 PSI or below. Please contact us if you plan to “tee off” the pure water line and connect it to your fridge, as you would need a regular RO faucet along with a pressure regulator.

• SUPERIOR PERFORMANCE: The advance 4-stage design, which includes both Ultrafiltration and KDF/GAC stages removes up to 99% of most problematic pollutants such as chlorine and chlorine treatment by-products, lead, arsenic, and much more, while retaining healthy minerals. Noted: This system does not affect TDS as Reverse Osmosis System does
• 4-Stage ULTRA FILTRATION SYSTEM: PP Sediment Filter ((5 microns) removes larger particles like rust, sand, dirt. ) Ultra Filtration Filter (contains hollow fiber membrane technology with a pore size of just 0.01 microns. ) KDF and GAC Filter (provides much better control of particularly problematic contaminants including chloramine, hydrogen sulfide, heavy metals, and other compounds). Fine Activated Carbon Filter (provides final polishing before the purified water).
• SIMPLE AND FLEXIBLE: NO WASTE WATER and No storage water tank required. The CU-A4 provides highly effective water filtration for any number of clean-water needs - at the sink, in the refrigerator, for coffee makers and more.
• FEATURES: Come with premium Chrome finish drinking water faucet. All filters, tubing and other water-contacting parts are manufactured to comply strictly with NSF/ANSI standards for safety and water quality.
• EASY-TO-INSTALL AND REPLACE FILTER: Push to connect fittings with color-coded tubing simplify the installation process. Filter replacement are designed for ease. No need to disconnect hoses or water lines. Just Twist On / Twist Off filter cartridges make changing filters a snap. Filter life: 6 -12 months, depending on your source water and usage.

User questions & answers

Question:	What's the advantage of this water filter compared to a reverse osmosis system
Answer:	We chose this system because we wanted to have something that doesn't produce waste water. Since this is not a reverse osmosis system, it doesn't lower the TDS. We're on city water so it's perfect for us since our TDS is only around 56. Also, it doesn't remove the healthy minerals from the water like an RO system does. It doesn't require a storage tank either so we could fit this unit in a cabinet above our fridge! Everything worked out great for us.
Question:	What is no pressure faucet and why do you need it for this filter
Answer:	That's a great question...Normally, when an under sink filter is installed, the filter is "inline" with your water line and sees the full pressure of your home's waterline at all times...(it's a 2-way valve). So if your water line is typically at 60 psi, that is the pressure that your filter experiences when your water filter valve is closed. This is a problem, since the filter system is the weakest link in your water line, and if the filter fails while under pressure, you have a flood in your home...This filter system has a 4 way valve, so when the valve is open, the water from your water line is directed to the inlet of your filter...When the water valve is closed, the water line pressure is isolated from the filter, and the inlet of the filter is connected to the outlet of the filter (no pressure on the filter) So your filter never sees the full pressure of your water line...This virtually eliminates the potential for catastrophic flooding due to a filter failure...I had a precious under sink filter system and every time I changed the filter the filters would leak, because they were always under pressure and the o-ring system in the filter housing was compromised...This is not a problem for me now because with the 4-way valve in this system, when the valve is closed, the filter has zero pressure on it...
Question:	Has anyone tested the water that comes out of the filter with a TDS meter? I checked mine today and found that the TDS was the same as the tap water
Answer:	Per Josh @ iSpring 3/7/2017 - this will not remove minerals present in your city's tap water, so there should be little difference in total dissolved solids (TDS) count.
Question:	How many gallons of water will be treated during a filter's lifespan, before they need to be replaced? Also, is there a change indicator
Answer:	The actual gallon life will vary from customer to customer. As with all replaceable filter cartridges, they have limited space to hold the contaminants they remove from your water. This means that the higher concentration of junk you have in your source water, the faster the filters will run out space to keep filtering and vice versa. The average is about 1100 gallons, but this number may not represent your source water, so individual results could either be more or less than the average.

Product features

Easy Installation And Maintenance

The CU-A4 is designed to be simple to install and simple to maintain. Push to connect fittings and color-coded tubing simplify the installation process. iSpring Twist On / Twist Off filter cartridges make changing filters a snap.

Ultra Filtration (UF) Filter

The Ultra Filtration (UF) stage contains hollow fiber membrane technology with a pore size of just 0.01-micron, surpassing the performance of both carbon block and 'portable mini' water filters.

KDF + GAC

The CU-A4 is the only filter in its class to offer Kinetic Degradation Fluxion (KDF) Media which adds an important additional layer of protection to control metals.

Product description

Made of high quality material for all components and equipped with premium big blue 10” x 4.5” filters, this iSpring water filter system US21B is your best bet for safe, clean, and healthy water for drinking and cooking right from your tap. This heavy duty undercounter water filter system is designed to provide you and your loved ones with a continuous on-demand supply of refreshing filtered water whenever your kitchen faucet is on. 1st stage compound filter(FG15B-KS) and 2nd stage CTO carbon block filter(FC15B) effectively remove up to 99% of contaminants, including chlorine, lead, mercury, organic compounds, and many other heavy metals. They also tackle problems like turbidity, cloudiness, colors, bad taste, and odors(e.g. hydrogen sulfide that smells like rotten eggs). This under sink water filtration system comes with two upgraded 48-inch direct connect hoses(customers who received by default 24" hoses are welcomed to contact us to get free replacements) that connect the system to the existing under sink incoming water supply and the cold water line of your kitchen faucet. Easy DIY installation and filter change. A reliable under counter drinking water filtration system that protects you and your loved ones from ingesting harmful chemicals or contaminants in your tap water from now and for many years to come.

• [Commercial Grade] ] Made of high quality material for all components and equipped with premium big blue 10” x 4.5” filters, iSpring US21B is your best under sink water filter for safe, clean, and healthy water for drinking and cooking right from your tap. This heavy duty under sink water filter system is designed to provide you and your loved ones with a continuous on-demand supply of refreshing filtered water whenever your kitchen faucet is on. No waste water. NO TANK taking up your under sink space.
• [High Capacity Filters] 1st stage KDF plus GAC carbon filter(FG15B-KS) and 2nd stage CTO carbon block filter(FC15B) effectively remove up to 99% of contaminants, including chlorine, lead, iron, mercury, organic compounds, and many other heavy metals. They also tackle problems like turbidity, cloudiness, colors, bad taste, and odors(e.g. hydrogen sulfide that smells like rotten eggs). A reliable shield that protects you and your family from ingesting harmful chemicals or contaminants in your tap water.
• [Great Water Flow] Thanks to the system’s connection design and its 1” inlet and outlet ports, you will experience less waiting time when filling up your glasses, pitcher, coffee pot, or cooking pots as the peak water flow rate is up to 15 GPM. Based on the contaminant levels in source water and your water use, we suggest that you change your filters every 6-12 months for best filtration performance.
• [Super Easy DIY Installation] Comes with two upgraded 48-inch DIRECT CONNECT hoses that connect the system to the existing under sink incoming water supply and the cold water line of your kitchen faucet. Unlike reverse osmosis systems or other water filter under sink, you don’t need to spend time drilling a hole on your countertop for a RO faucet. No extension hoses needed to achieve optimal convenience. Tool free. No mess. System installation and filter cartridge replacement are a breeze!
• [TDS Note] Please be noted that this under counter water filter system is NOT designed to reduce Total Dissolved Solids(TDS) removal and instead keeps essential minerals in your water. If you are interested in a filter that significantly reduces TDS, please consider our iSpring Reverse Osmosis (RO) systems RCC7 series or tankless RCT600 or RO500.
• [Peace-of-Mind Support] We offer tech and CS support via phone and email from Atlanta, GA. Contact our responsive and professional team for product selection to suit your water filtration needs and after-sale support to maximize your user experience. Now, and years to come, we will be right here and ready to help.

User questions & answers

Question:	Is this BPA free
Answer:	Hi Vin, Yes, this is BPA free. If you have any questions or need additional assistance, please contact us at [email protected] or call us at (678) 261-7611. Thanks, iSpring Water Systems, LLC
Question:	Can this be mounted flat (on it's back) on the bottom of the cabinet instead of vertically on the side wall
Answer:	Hi, We do not recommend mounting this in any orientation other than vertical. This will put unnecessary stress on the housings. If you have any questions or need additional assistance, please contact us at [email protected] or call us at (678) 261-7611. Thanks, iSpring Water Systems, LLC
Question:	Is there a list of what this actually filters out of the water? I would like to compare the list to what is in my city water
Answer:	Hi, FG15B-KS remove chlorine, lead, iron, mercury, hydrogen sulfide, THMs, chloride, chloramines, herbicides, nitrate, odors, and other contaminants. Using high quality coconut shell carbon and highly compact fabrication tech, 2nd stage CTO filter FC15B knocks out cloudiness as well as bad tastes and odors, removes up to 99% of chlorine, and is highly effective on Organic Compounds like herbicides and industrial solvents and other contaminants like trihalomethanes. For more details please contact iSpring. Thank you.
Question:	Will this system bring the tds down to a lower level? Im looking for a reverse osmosis to connect to my deionized for car washing with a prssure wash
Answer:	Hi, No, this is not a reverse osmosis system so the TDS will remain the same. If‌ ‌you‌ ‌have‌ ‌any‌ ‌questions‌ ‌or‌ ‌need‌ ‌additional‌ ‌assistance,‌ ‌please‌ ‌contact‌ ‌us‌ ‌at‌ ‌[email protected]‌ ‌or‌ ‌call‌ ‌us‌ ‌at‌ ‌(678)‌ ‌261-7611.‌ ‌ ‌ Thanks,‌ ‌ ‌ iSpring‌ ‌Water‌ ‌Systems,‌ ‌LLC

Product features

Q: With this 2-stage undersink water filtration system, do I still need to install a water softener if my water is very hard?

A: Yes, a water softener is needed if your source water has a high level of hardness, usually with TDS higher than 700 PPM. Hard water can reduce the lifespan of water filter cartridges. The harder the water, the greater amount of scale buildup occurs, and the sooner the filters get clogged.

This powerful undersink water filtration system can remove up to 99% of sediment, chlorine, rust, pesticides, herbicides, industrial solvents, organic compounds, and various other contaminants that a regular water softener can't, although it does not soften your water. It is recommended that you add a Point-of-Entry(POE) water softener before this Point-of-Use(POU) undersink water filtration system US21B to achieve optimal performance if you have very hard water.