12 best gravity water filters

Gravity water filters are a type of water filtration system that relies on the force of gravity to purify drinking water. These filters are typically used in situations where access to electricity or pressurized water sources is limited. They are commonly used in outdoor settings, emergencies, or in areas with unreliable water supplies.

Here are some key points about gravity water filters:

  1. Basic Principle: Gravity water filters work on a simple principle. Water is poured into an upper chamber, and it then flows through one or more filter elements by the force of gravity. The filtered water collects in a lower chamber, ready for consumption.

  2. Filtration Media: These filters use various types of filtration media to remove impurities from the water. Common filtration media include activated carbon, ceramic, and hollow fiber membranes. Each type of media targets specific contaminants such as sediment, chlorine, bacteria, and other harmful particles.

  3. Portability: Gravity water filters are often designed to be lightweight and portable. This makes them ideal for camping, hiking, and emergency preparedness kits. Some models are also suitable for use in homes, particularly in areas with inconsistent access to clean water.

  4. Maintenance: Maintenance of gravity water filters typically involves cleaning the filter elements or replacing them when they become clogged or exhausted.Regular cleaning and maintenance are essential to ensure the filter's effectiveness.

  5. Capacity: The capacity of these filters varies depending on their design and size. Some models can hold several gallons of water, while others are more compact and suitable for personal use.

  6. Effectiveness: The effectiveness of a gravity water filter depends on the quality of its filter elements and its ability to remove specific contaminants. Some filters are designed to remove a broad range of impurities, while others focus on specific types of contaminants.

  7. Cost: Gravity water filters are generally affordable compared to more complex filtration systems. However, the initial cost can vary based on the brand, features, and filter capacity.

  8. Water Source: These filters are most effective when used with relatively clear water sources. If the water source is extremely turbid or contaminated, additional pre-filtering may be necessary to prevent clogging of the filter elements.

Overall, gravity water filters provide a convenient and efficient way to obtain clean drinking water in various situations. However, it's important to select a filter that suits your specific needs and to follow the manufacturer's instructions for proper maintenance and filter replacement to ensure the continued quality of the filtered water.

Below you can find our editor's choice of the best gravity water filters on the market
  

Platypus GravityWorks High-Capacity Water Filter System for Group Camping and Emergency Preparedness

Platypus

Based on 1 reviews Check latest price
  • High-capacity, gravity-fed, hollow-fiber water filter system is ideal for group and family camping, outdoor adventures, and emergency preparedness
  • Meets all EPA/NSF guidelines for removal of 99.9999% of bacteria and 99.9% of protozoa, including giardia, cryptosporidium, E. coli, salmonella, cholera
  • No pumping required; reservoir fills easily and hangs from a tree to deliver four liters of filtered water for cooking and washing in 2.5 minutes
  • Includes 4-liter dirty water reservoir, 4-liter clean water reservoir, hollow-fiber microfilter, hoses, shutoff clamp, and storage sack
  • Replaceable cartridge filters up to 1,500 gallons; produces flow rate of 1.75 liters/minute; kit weights 11.5 ounces; made in the USA

User questions & answers

Question: What is the best way to get water OUT of the clean bag while it hangs in camp? If the tops are hard to close...I see no spigot
Answer: It is medium or regular width. A is narrow, D is wide.
Question: Does this filter salt water
Answer: I work at a hospital and I'm on my feet for about 75% of the day and these shoes have been great! I used to have to wear gel insoles in my other shoes for extra padding but not with these. I also have chronic low back pain, but I find these shoes very supportive. I would recommend ordering 1/2 size up for the best fit. I usually wear a 7.5 but needed an 8 in these shoes.
Question: What size is filter? Sawyer claims 0.02 micron, small enough to filter viruses
Answer: If you get the angle just right that ball will pop so hard it’ll knock you over!
Question: what all is included in this
Answer: These were bought for my daughter and she got the same size Nike basketball shoe as her Asics volleyball shoe. She says they fit the same.

Product features

Platypus Gravity Works

Platypus GravityWorks water filters make it effortless to get clean water practically anywhere. You simply fill the reservoir and let gravity filter the water for you. GravityWorks filters provide clean water faster than most pump systems, and they make it easier to store, transport and dispense all the water you need. All GravityWorks filters meet EPA and NSF guidelines for the removal of Bacteria and Protozoa, including Giardia, Cryptosporidium, E.coli, Salmonella and Cholera.

GravityWorks Carbon Element

Maximize the Platypus taste-free experience with the new GravityWorks Carbon Element. It easily splices in after the GravityWorks hollow fiber element with an included hose segment, helping to remove flavors, odors, and many organic compounds from filtered water for the best taste possible. (sold separately).

GravityWorks Filter Cartridge

Effective down to .2 microns and meets EPA Guide Standards for the removal of bacteria and protozoa. Approximate filter life of 1500L depending on quality of water filtered. (sold separately).

Universal Bottle Adapter

The Universal Bottle Adapter allows any GravityWorks water filtration system to filter directly into a wide range of hard bottles and hydration systems, eliminating the weight of a dedicated Clean Reservoir. Its multi-component design lets you take just the parts you need for your vessel of choice to further lighten your load. (sold separately).

Replacement Hose Kits

Kits for both the 4.0L and 2.0L GravityWorks systems contain Clean and Dirty hoses, as well as a replacement Quick-Connect fitting and shutoff clamp. (sold separately).

We Believe In Clean Water

Our mission is to create the finest reservoirs, bottles, and water filters on the planet so you're never without clean water. That's why we put thousands of hours of laboratory testing and field use behind every piece of gear we sell. The result is clean and taste-free hydration you can count on day after day, anywhere in the world.

Sawyer Products Gravity Water Filtration System w/Dual-Threaded SP160 One Gallon Mini Filter

Sawyer Products

Based on 1 reviews Check latest price

Product description

A lightweight, robust solution for filtering large quantities of water, Sawyer's Gravity System with Dual-Threaded MINI filter is ideal for backpacking, backcountry camping, and emergency preparedness. Available in two models, the 1-Gallon Gravity System (SP160) comes with one bag and a MINI, while the 1-Gallon Dual Bladder Gravity System (SP2160) comes with two bags (one for dirty water, one for clean) and a MINI. The Sawyer dual-threaded MINI water filter weighs just 2 ounces, fits in the palm of your hand, and is rated to 0.1 micron absolute filtration — removing 99.99999% of all bacteria, such as salmonella, cholera, and E.coli, and removing 99.9999% of all protozoa (such as giardia and cryptosporidium). The MINI also filters out 100% of microplastics. With threads on both sides, you can screw the flip top cap onto the MINI for easy on/off functionality while filtering. Convenient and easily packable, this single- and dual-bag gravity system doesn’t require any pumping and is perfect for camping, hunting, fishing, scouting, disaster relief, and emergency preparedness kits, as well as on adventure travel excursions where potable tap and bottled water are not easily carried or safe to drink. The 1-gallon bladders feature a wide mouth cap that allows for fast and easy filling, as well as a convenient carry handle. To set up a gravity system, first fill the reservoir with water from any source (a lake, stream, pond, glacier, kitchen faucet, etc.). Hang the bag — from a tree, the back of your pack, or hold it up with your hand — and connect the MINI to the included hose and let gravity do its work. Water will flow through the MINI to produce fresh, clean water for drinking and cooking. The SP2160 Dual Bladder Gravity System includes a second "Clean Water" 1-gallon reservoir to hold your filtered water. The SP160 package includes a dual-threaded MINI water filter, 1-gallon bladder, cleaning plunger, and gravity hose with adapters. It also comes with Sawyer's Cleaning Coupling accessory. The SP2160 package includes a dual-threaded MINI water filter, dirty water bladder, clean water bladder, tube adapter with shutoff clamp, inline adapters, tube adapter, long tube, hanging strap with S-biner, cleaning plunger, cleaning coupling, flip top cap, and hose guide. 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.

  • Easily create gravity-based water filtering system with 0.1 micron absolute dual-threaded Sawyer MINI water filter and 1-gallon reservoir
  • 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
  • Dual-threaded MINI allows you to use the flip top sports cap on the filter for easy on/off functionality; lightweight wide-mouth bladder for fast, easy filling; convenient carry handle
  • Versatile camping water filter system is great for travel, backcountry treks, emergency prepping, and disaster kits
  • Includes MINI Water Filter, 1-gallon bladder, cleaning plunger, cleaning coupling, and gravity hose with adapters

User questions & answers

Question: Does this use the same mini filter as the "sawyer products mini water filtration system
Answer: MOST DEFINITELY! The support in these shoes are literally amazing.
Question: Can you back fill with enough force to clear filter in the woods by pouring water from bottle? I'm guessing using dirty water contaminates clean end
Answer: No, they aren't extra wide... but they aren't super tight either. They literally are just right... your feet doesn't feel smothered or cramped up.
Question: I already have a Sawyer Squeeze (and a mini for that matter). Do you sell the gallon bag and tubing in a separate kit
Answer: No, they come in regular fit as well
Question: How long does it take to filter 1 gallon
Answer: My experience is that these shoes do not leave marks.

Product features

Sawyer Single Bag Gravity Water Filtration System with 0.1 Micron Water Filter

Ideal for backcountry trekking with family and friends or keeping on hand for emergencies, Sawyer's Single Bladder Gravity Water Filtration System provides an easy-to-use, portable, and high-flow gravity-based water filtration system that's great for filtering large quantities of water.

It comes with a Dual-Threaded MINI 0.1 micron water filter, which enables you to directly fill water bottles, soda bottles, hydration packs, and more.

  • 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 Aquadiagnostics Laboratories and Envirotek Laboratories (S1 – 2512B-12512C; S3 – 12514-12514A), 2017

Gravity Filtering System

Unscrew the wide mouth opening and fill the bag with water from any source — lake, stream, faucet, etc. — and connect the included tube between the bladder and the Dual-Threaded MINI.

After filling, hang the reservoir with the MINI below it from a tree, the back of your pack, or simply hold it up with your hand. Water will flow through the MINI to produce fresh, clean water for drinking and cooking.

Filtered Water Anywhere

Fitting in the palm of your hand, the Dual-Threaded MINI gives you several ways to access clean water. With threads on both sides, you can screw the flip top cap onto the MINI for easy on/off functionality while filtering to control water flow.

The filter can also be screwed onto most disposable water or soda bottles, or attach it inline to tubing between a hydration pack and bite valve.

Filter Again and Again

The Dual-Threaded MINI can be cleaned and reused almost indefinitely with no expensive cartridges to replace… ever.

When water flow begins to diminish, simply perform a backwash to restore up to 98% of the filter’s flow rate and enjoy fresh, clean water wherever you roam.

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.

Travel Berkey Gravity-Fed Water Filter with 2 Black Berkey Purification Elements

Berkey

Based on 1 reviews Check latest price

Product description

Berkey Systems are the World's Most Powerful and Cost Effective Personal Water purification Systems Providing Reliable and User-friendly Water Purification in Both Normal and Hostile Filtration Environments. Moreover, Berkey systems are capable of purifying both treated water and untreated raw water from such sources as remote lakes, streams, stagnant ponds and water supplies in foreign countries, where regulations may be substandard at best. So powerful, this system is able to remove red food coloring from water without removing the beneficial minerals your body needs. Perfect for everyday use and a must in hostile environments where electricity, water pressure or treated water may not be available.

From the Manufacturer

Berkey Systems are the World's Most Powerful and Cost Effective Personal Water purification Systems Providing Reliable and User-friendly Water Purification in Both Normal and Hostile Filtration Environments. Moreover, Berkey systems are capable of purifying both treated water and untreated raw water from such sources as remote lakes, streams, stagnant ponds and water supplies in foreign countries, where regulations may be substandard at best. So powerful, this system is able to remove red food coloring from water without removing the beneficial minerals your body needs. Perfect for everyday use and a must in hostile environments where electricity, water pressure or treated water may not be available.

  • 1.5 GALLON CAPACITY- The portable Travel Berkey Purification System effortlessly purifies water for about 1-3 people each day. The system is just 18” tall and 7.5” in diameter.
  • POWERFUL PURIFICATION- Berkey systems equipped with Black Berkey Purification Elements purify water—not just filter it—by removing greater than 99.999% of viruses and greater than 99.9999% of pathogenic bacteria, while also removing or dramatically reducing protozoa (such as giardia and cryptosporidium), trihalomethanes, inorganic minerals, heavy metals (including arsenic, lead, mercury, chromium), pharmaceutical drugs (including caffeine, Acetaminophen, Ibuprofen, Progesterone, Triclosan),
  • ECONOMICAL, LONG-LASTING- A pair of Black Berkey Purification Elements lasts for up to 6,000 gallons before needing replacement. Black Berkey Purification Elements average just 2 cents per gallon of purified water.
  • INDEPENDENT TESTING- Berkey by NMCL uses several independent third-party labs to test a broad range of potential contaminants and conducts Extreme Testing for lead and PFCs in order to show the effectiveness of our Black Berkey Purification Elements.
  • DRINK CONFIDENTLY VIRTUALLY ANYWHERE- No electricity, tools or plumbing required. Travel the world, prepare for emergencies, and take control of your family’s everyday drinking water with your Berkey gravity-fed water filtration system with Black Berkey purification elements. Enjoy delicious, nourishing water from the leader in gravity-fed water solutions.

User questions & answers

Question: How easy is it to clean and how frequently does it need to be cleaned
Answer: It can be attached to a liter soda bottle. The red protrusion from that end that can be seen in the manufacturers pics is the inlet covered with what appears to be a push fit plastic cap. They come in a sealed plastic bag that I don't want to open till I need the filter. It's probable that some sized hose will fit the inlet when the red plastic cap is removed.
Question: I don't see in the description where it says it filters out fluoride. That is the biggie for me so curious. I know some Berkeys do just not sure about
Answer: You can purchase replacement filters for the Outback Plus emergency water system on Amazon under "Outback Plus Water Filter Replacement Kit" or using the following link: https://www.amazon.com/Outback-Replacement-OB-25NF-Emergency-Filtration/dp/B07QMRHPLQ/. Please let us know if we can assist you further.
Question: are the filters Bpa free? and does Berkey off a ceramic filter for fluoride instead of plastic junk
Answer: From what I can see, yes... One goes into the refrigerator itself on the back wall and the other above the refrigerator behind the grill ... I change about once a year as I have filtered water as the source for the refrigerator.
Question: Why is the product Not for sale in California or Iowa
Answer: Your product should be alright. The water filter is a closed container with a carbon insert, and a cap on to protect the interior. Wipe it off and it is ready to go. The air purifier works by pulling air through the material inside. It is easily protected by the cardboard packaging. You can wipe the dust off, and install it. Should not cause any problem. I did not recall the rattles. I happened to have the last one I replaced since I have not taken it to discard at the local environmental center yet. I shook it and it did rattle. Sounded like some miniature metal balls a bit smaller than the BBs you use to shoot in your Red Rider bb gun when you had a GREAT Christmas years ago. Go ahead and install it and mark your calendar to replace it again in one year. This is about the 14th time I have gone through the process and I think they are very good products.

LifeStraw Flex Advanced Water Filter with Gravity Bag - Removes Lead, Bacteria, Parasites and Chemicals Blue, 1 gal

LifeStraw

Based on 1 reviews Check latest price

Product description

Life Straw flex with Gravity bag is a powerful 2-stage water Filter that provides safe drinking water in any environment. It removes Bacteria, parasites, and micro plastics while reducing lead and chemicals. It can be used in 4 ways: with the included 1-gallon Gravity bag, as a personal straw, attached to a hydration pack, or with a plastic water bottle. It exceeds us EPA and NSF standards for safe drinking water. The hollow fiber membrane is good for 2, 000 liters (500 Gal), while the replaceable carbon Filter lasts 100 liters (25 Gal).

  • Hollow fiber Membrane: 0.2 micron pore size. Removes 99.999999% of bacteria, 99.999% of protozoa, and 99.999% of Micro plastics
  • Carbon fiber capsule: improves taste while reducing lead, other heavy metals, chlorine and Organic chemical matter (pesticides, herbicides, voc)
  • Performance: exceeds US EPA drinking water standards for bacteria and parasites. Exceeds NSF 53 standard for reduction of lead and other heavy metals
  • Longevity/lifetime: 2, 000 liters/500 gallons (hollow fiber Membrane) 100 liters/26.4 gallons (replaceable carbon capsule)
  • Make an impact: for every Life Straw product purchased, a school child in need receives safe drinking water for an entire school year

User questions & answers

Question: Is there a trick to getting clean water through this thing? Even Hulk Hogan couldn't squeeze hard enough as it is
Answer: The filter should be able to process a gallon of water in less than 10 minutes. Two fixes ... 1. There could be an air bubble trapped in the filter or tube, to remove it, unscrew the end cap that is attached to the tube and filter (make sure you do not get water on the drinking water outlet), then screw the cap tight again and test the flow. 2. Use the included backwashing syringe to clear the filter, there might be much debris from turbid water slowing your flow.
Question: Where is this product made
Answer: Our products are made designed in Switzerland and made in South Korea.
Question: Why does the initial filter last for 500 gallons but the replacement filter only lasts for 25 gallons? that seems like a ridiculous difference
Answer: There are two replacements for this product. The main membrane would still last for 500 gallons of water and then the carbon capsule is 25. These are two separate filters.
Question: Will this work for well water
Answer: It should work for any water source. Just know, the dirtier the water, the more often it needs to be replaced. Also, it is not made to filter large amounts if water, and it's very slow.

Joypur High Capacity Gravity-Fed Water Filter System with 3 Purification Filters for Home Camping Travel Outdoor Activities Emergencies

joypur

Based on 11 reviews Check latest price
  • ★HIGH CAPACITY WATER STORAGE - Joypur Purification System can hold 2.9 gallons of water, and can provide high-quality water for 4-6 people during the trip.
  • ★5 STAGE NANO COMPOSITE FILTER - Joypur with 3 pcs high-efficiency composite filter systems to effectively remove 99.9999% of bacteria, including Lead, Chromium, Chloramines, Mercury and much more. Five-stage filter (0.01 micron pores) , protect you and your family from contaminants that other filters miss. Smart filter media keeps healthy trace minerals like calcium and magnesium in your water.
  • ★LONG-LASTING & REPLACEABLE FILTER - Our Purification Filters lasts for up to 9,000 gallons,no need to worry journey water shortage.filter can be replaced easily, detachable filters save you money.
  • ★DAILY USE & WILD SURVIVAL - operates without electricity and depends on gravity, which is ideal for all kinds of outdoor purposes such as parties, camping, hiking, motels etc.Joypur gravity-fed water filtration system operates without electricity and depends on gravity, Suitable for ideal filter system for home, travelling, outdoor activities and emergencies, the filter can provide you with healthy, clean and quality water at home and outdoors.
  • ★OUR PROMISE TO CUSTOMERS - 100% Lifetime Satisfaction Guarantee / Friendly 24-7 Email Support / No-Hassle Returns / Expedited Order Delivery / Promotional Discount Codes / Pleasant shopping experience.

User questions & answers

Question: Will it leak
Answer: Jeffery - great question. An Epic water filter will filter about 200 gallons of water (Brita will do about 40). As the filter gets closer to the 200 gallons, it will get slower and slower at filtering water until it no longer passes water. That's when you know it is time for a new filter. Keep in mind, the more contaminated your water is, the shorter the life of the filter. On average, we are seeing filters last most customers between 4 and 6 months depending on usage and water quality. Personally, I like the fact that my filter gets slower over the life of the filter so that I know it is actually working. I had other brands in the past and they keep filtering water way past their expected life at almost the same rate and I always wondered if they worked. Thanks, Joel
Question: does it remove fluoride
Answer: For those like myself who were disappointed to discover Aquagear is no longer here on Amazon, they do still have their own website where you can buy both the water pitcher and/or filter replacements. You can even subscribe to receive a new filter every 6 months which gives you 20 percent off. I love it because it is a reminder to me to replace. Otherwise I'll go well past the 6 months, which probably isn't healthy. So yeah, go to the Aquagear website if you prefer their filters over this filter.
Question: Will this filter remove Arsenic and Uranium
Answer: Glad to report that this(Epic) filter fits in my Clearly Filtered water pitcher!
Question: Any way to contact company that sells this? No response from joypur or straws outdoor. Wanted to know if the berkey filters work with this
Answer: These water filter work with the Berkey style counter top gravity water filters. Indoors or outdoors depends on where you want to use it. We also have a Big Berkey gravity filter. These Purification Elements work perfect with it as well.

ProOne Traveler+ Polished Stainless Countertop Gravity Water Filter System w/ 5-inch Filter & Wire Stand - Remove Fluoride Lead Chlorine Microplastics

ProOne

Based on 8 reviews Check latest price

Product description

Whether on the go, emergency preparedness or for daily use, be at ease knowing you have clean drinkable water with a ProOne Gravity water filtration system. Easy to set up. No electricity or plumbing required. Use with just about any potable water source whether at home, office, school, camping or traveling. All ProOne gravity systems feature ProOne G2.0 “all-in-one” NSF/ANSI-42 component certified filter technology – the smarter filter. Independent lab tested to NSF standards 42, 53, P231, microplastics,1,4 Dioxane, Microcystin, emerging contaminants, PFOAS (GenX), TTHM’s, bacteria, Fluoride, Lead, Parasites and more. Visit our lab reports for full details on the 200+ tested contaminants. New ProOne Gravity Gripper exclusive design makes it easy to lift the upper container to view how much water is in the lower container. The Traveler+ Gripper style is made from 304 stainless for long lasting durability and includes a stainless 304 spigot and non-slip pad.

  • 2.25 GALLON CAPACITY - The Traveler+ Polished is a great water purification system for 1 to 3 people and its space-saving design makes it the perfect size for a small kitchen, apartment, college dorm room, or anywhere space is at a premium. It’s compact, portable design makes it ideal for vacation and travel. The Traveler+ is 20.5” tall and 8.5” in diameter.
  • HIGH QUALITY 304 STAINLESS STEEL - The ProOne Traveler+ Polished is made from an easy to clean polished stainless steel. It is resistant to corrosion and rust, and it will look great on your counter. Its lasting durability makes it ideal for daily use. Use indoors or outdoors. This system includes 1 ProOne G2.0 - 5” filter element, stainless steel spigot, and non-slip pad. Introduction special includes 6” wire stand at no extra charge, a $29.95 value.
  • BE PREPARED FOR EMERGENCIES- This gravity fed filtration system requires no electricity, providing clean, drinkable water for you and your family in just about any emergency situation. You don’t have to be a survivalist or a prepper to understand the value of a clean glass of water during a natural disaster.
  • CLEAN, GREAT TASTING WATER - The ProOne G2.0 filters help remove harmful contaminants and chemicals from your drinking water. They reduce or remove heavy metals, fluoride, pesticides, herbicides, chloramines, bacteria, pharmaceuticals and much more. Beneficial minerals like calcium are left behind for great tasting, healthier H2O.
  • LONG-LASTING FILTERS – The ProOne G2.0 filters will last up to 6 months with regular daily use. Our filters are infused with silver to help prevent bacterial growth, leaving you with convenient, worry-free drinking water. ProOne G2.0 series “all-in-one” filters are NSF/ANSI -42 component certified and independent lab tested.

User questions & answers

Question: How many filters does the traveler hold
Answer: The ProOne Traveler+ can hold up to 2 filter elements. Thank you, ProOne Customer Service
Question: Where is this made
Answer: Hi there, ProOne products are made from both domestic and imported parts, then assembled here in Michigan! Thank you, ProOne Customer Support
Question: Hello how long does it take for it to filter the water
Answer: It takes about 4-6 hours for the water to filter through, but the results are definitely worth the wait!!!
Question: will the filter be harmed if it freezes
Answer: Yes, freezing could cause the ceramic housing to crack. Thank you, ProOne Customer Support

Waterdrop Personal Water Filter Straw with Gravity Water Bag, Portable Camping Filtration System, Drinking Water Purifier for Emergency Hiking Travel Backpacking

Waterdrop

Based on 352 reviews Check latest price
  • 💧 【Premium materials】: Effectively Removes 99% of harmful substances. The adoption of high-grade coconut shell activated carbon fiber improves odor and taste, ensures the water safety and delivers better drinking experience.
  • 💧 【Versatile uses】: Use with water bags or connect to water bottles to filtrate water for drinking. Both ends of it can be disassembled and connected with water bags and water bottles to offer you clean drinking water anywhere, anytime.
  • 💧 【Outdoor water needs】: Fulfill all your outdoor water demands: hiking, camping, domestic and international travel, emergency preparedness (tornadoes, rainstorms, earthquakes, floods, etc.) to meet the emergency water demand in a variety of situations.
  • 💧 【Innovative super-wash design】: No need for the extra syringe to backwash. It eliminates cumbersome fittings and saves space, brings you pure water with the greatest convenience and comfort.
  • 💧 【Smaller frame】: Smaller frame but bigger capacity, Waterdrop Filterstraw can provide safe drinking water up to 100,000 gallons. It is easy to absorb water and can quench your thirst instantly. Match with water bags or bottles for the ultimate drinking experience.

User questions & answers

Question: how long does this product last? 1 day? 1 month
Answer: You can control as many speakers as you want, as long as the sum of the speaker wattage doesn’t exceed 100 watts.
Question: How much does this weigh
Answer: White, Ivory, and Almond Plates, Inserts, Screws, and Knobs are included.
Question: What is the capacity of the blue and white bag
Answer: No you'll need to run in parallel from the same source. Each control could control a separate location but you can not run the same location from each control!
Question: There is an option shown to buy with bag. How much does the bag hold
Answer: In 70V you need to leave a 20% cushion so you need to calculate 20% of 240 volts or 192 watts. If you set the taps on 70V to 25 watts (if that is the setting) then 6 x 25 watts is 150 watts and the MVC25 will work. You should always pick a volume control rated at more power than you need whether it is 70V mono or 8 ohm stereo.

Product features

Four-stage filtration

It uses four-stage filtration, reducing contaminants—from large particles to extremely tiny particles effectively to ensure the safety of the water.

Improvement of water experience

Uses advanced Japanese activated carbon fiber filter media to ensure water safety and improve taste, providing you with high-quality water in the field.

Effective reduction

The filter adopts a 0.1-micron hollow fiber membrane to reduce 99.99% of harmful substance in water.

Easy to carry and use

You can use the Filterstraw with water bottles or soda bottles that have a standard thread on their tops. Fill the filtered water into the bottle and take it with you anywhere you want.

Can be shared to satisfy many people

Filterstraw can connect to water bags or bottles, and you can enjoy clean water for yourself and with friends.

Achieves cleanliness

There is no need for extra syringe backwashing. It eliminates extra cumbersome fittings and makes the water bag versatile.

Big Berkey Gravity-Fed Water Filter with 2 Black Berkey Purification Elements

Berkey

Based on 1 reviews Check latest price
  • 2.25 GALLON CAPACITY- The portable Big Berkey Purification System effortlessly purifies water for about 1-4 people each day. Add additional Black Berkey Purification Elements (the Big Berkey System can hold a maximum of four) to increase the flow rate. The system is just 19.25” tall and 8.5” in diameter.
  • POWERFUL PURIFICATION- Berkey systems equipped with Black Berkey Purification Elements purify water—not just filter it—by removing greater than 99.999% of viruses and greater than 99.9999% of pathogenic bacteria, while also removing or dramatically reducing protozoa (such as giardia and cryptosporidium), trihalomethanes, inorganic minerals, heavy metals (including arsenic, lead, mercury, chromium), pharmaceutical drugs (including caffeine, Acetaminophen, Ibuprofen, Progesterone, Triclosan),
  • ECONOMICAL, LONG-LASTING- A pair of Black Berkey Purification Elements lasts for up to 6,000 gallons before needing replacement. Each additional pair of elements (sold separately) adds an additional 6,000 gallons of purification power to your system. Black Berkey Purification Elements average just 2 cents per gallon of purified water.
  • INDEPENDENT TESTING- Berkey by NMCL uses several independent third-party labs to test a broad range of potential contaminants and conducts Extreme Testing for lead and PFCs in order to show the effectiveness of our Black Berkey Purification Elements.
  • DRINK CONFIDENTLY VIRTUALLY ANYWHERE- No electricity, tools or plumbing required. Travel the world, prepare for emergencies, and take control of your family’s everyday drinking water with your Berkey gravity-fed water filtration system with Black Berkey purification elements. Enjoy delicious, nourishing water from the leader in gravity-fed water solutions.

User questions & answers

Question: Do the black filters remove lead
Answer: Next to the SKU number on the back of the box it states, "Made in China".
Question: How does Calif prop 65 relate to this product
Answer: This thing is very good. I drank quite a bit from some murky, dirty ponds with all manner of things in them. I know that these work on viruses, though some products offer an extra - Micro-Fine ceramic filter for extra assurance. Charcoal and 'hybrid type' filters with other elements besides just charcoal will remove most of 'heavy metals' from the water. My recollection was that this straw system did a pretty darn good job. If you are looking for one that you are going to use extensively and this is important for you, look into the Katadyn Hiker Pro. Did 14 days with it this summer and it was superb. This straw system lives in my emergency / earthquake kit, but I've used it camping and been happy with it.
Question: does it take out 99.9999 of contaminates including radioactive elements
Answer: I can't see a way to replace the internal filter. From my experience with filter straws, once they have reached their lifespan you buy a new one to continue your outdoor adventures.
Question: How often are filter changes required under normal city water conditions
Answer: Purifying urine requires a process known as forward osmosis, a process that uses a concentrated salt or sugar solution to draw the water out of urine. This product contains a carbon filter and is designed to remove contaminates from water, not water from contaminates, which is essentially what you would be attempting to do when purifying urine.

SimPure Gravity Water Filter Straw, Portable Water Purification Filtration System with 3L Gravity-Fed Bag, BPA Free Outdoor Survival Camping Gear Equipment for Camping Hiking Emergency Preparedness

SimPure

Based on 284 reviews Check latest price
  • MULTI MODES DESIGN: Our water filtration system camping comes with an expansion interface for connection to a variety of beverage bottles for different people use and with an added 29.5-inch extension tube that allows drinking rivers, ponds, streams, or any water source directly. A shut-off clamp to achieve ready-to-use water production from hanging gravity bag, very convenient to use.
  • LONG LIFESPAN & CONVENIENT: Our hiking water filter straw up to 5,000 liters (1320gallons) of water purification for a family of four for 3.5 years. Gravity-Fed portable water purifier, convenient carry handle, weighs just 2.8 ounces, just hang from the tree or other support to get pure water. The water filter lifespan can be extended by clean water backwashing.
  • ADVANCED FILTRATION SYSTEM: SimPure camping water filter made up 0.1-micron hollow fiber ultrafiltration membrane, 5-micron coconut shell GAC filter, and 0.2-micron PP fiber filter, safe and effective filtration system to remove 99.99999% heavy metal, chlorine, odors, organic harmful minerals, etc, and make the water taste better.
  • FOOD GRADE & HUGE CAPACITY: Our portable backpacking water filters build-out of strong food-grade plastics, manufactured with FDA Certificated, BPA-Free ABS, very safe. With 3L BPA-free large capacity TPU water storage bag can provide you with enough reliable sources of pure drinking water at any time and anywhere. Especially in an emergency.
  • WHAT YOU GET: 1 x Water Filter Straw, 1 x 3L Food-grade TPU Water Storage Bag, 1x Tree Strap, 1 × Food-grade Silicone Tube, 1 × Expansion Interface, 1× Shut-off Clamp, 1 × Carabiner, 1 x Storage Bag. We provide one year warranty and 30 days money back, lifetime friendly customer service, if you have any questions, do not hesitate to contact us, we will always to stand to help you.

User questions & answers

Question: Are replacement filters available
Answer: They ARE narrow. I want a wider size and according to the shoe size chart link, I wanted a 2E, not 4E Ultrawide, BUT Amazon Zappo's only stock the 'normal' Narrow and 4E Ultrawides. @WayneM, there is no 'half size larger' to select, apparently they don't pay attention to what people are buying and they don't bother to restock. I went ahead and ordered the D 'medium' which is actually very NARROW. The shoes came and they just fit me with the laces all the way stretched out. That said, I like them anyway - they're light and the sole is solid. The box only says size 10.5 and No width letter. And they don't show the width letter on the shoe's label either. Good shoe, not great sizing.So, Zappo's / Amazon has some work to do to avoid confusion and returns, just stock the medium wides, please. And start labeling the shoes better.
Question: What is the flow rate
Answer: I've been wearing them for walking for almost a year now. I started walking a few hundred yards a day last summer when I weighed 270 and by fall I was walking 6-8 miles a day! I am down to 190 and my asics venture 5s have finally begun to wear out. I normally wear orthotics but have never put them in the asics and my feet are just fine! As a side note I bought some new balance on sale a couple weeks ago and my feet immediately began to hurt! I am buying another pair of asics venture5s today!
Question: is the storage bag BPA free
Answer: These shoes kick A$$ and take names. These new Matt 5 running shoes are outta names now
Question: Is there any type of warranty for the product or filter
Answer: Yes! They have worked very well for me

Product features

ADVANCED 3-STAGE FILTRATION TECHNOLOGY
Camping Essentials
Survival Water in an Instant
Easy Installation and Use
Wide Drinking Water Resources
Portable and Lightweight
Emergency Preparedness

ANYHOW BB9-2 Water filter , Black Purification Elements,Water Purifier Replacement Filters,Compatible with Gravity Filter System,Doulton Super Sterasyl and Propur Traveler, King, Big Series -2 Pack

Based on 12 reviews Check latest price

Product description

Berkey systems equipped with Black Berkey Purification Elements purify water

  • 【HIGH-EFFICIENCY FILTRATION】This BB9-2 Black Water Filters With powerful purification as the same as the original filters. The filter can removes contaminants such as inorganic minerals, heavy metals, silt, sediment, chlorine, sand, rust, odor and large particles in freshwater sources and improves the taste of water
  • 【COMPATIBLE MODELS】The BB9-2 Black Purification Elements perfectly fit the original brand.it is interchangeable with Travel, Big, Royal, Imperial, Crown Series, Propur Traveler, Nomad, King, Big Series, Gravity filter system.Doulton Super Sterasyl & ATC Super Sterasyl filter, W9361122 & W9361123 system.This washer and wingnut of filter is accuratly designed and it is tight enough to stop it from leaking
  • 【SAFE MATERIALS】Our BB9 Replacement Filters are made of high quality material that is natural coconut shell activated carbon.Not only do we firmly control the filter material but also adopt lead-free and BPA-free materials to produce the filter housing.Ensuring excellent removal performance that will not leach contaminants back into your water
  • 【ECONOMICAL WATER FILTER】Affordable choice. Extraordinary quality that costs less than half the price of the original brand Replacement water filter. Each person can save a large amount of money as well as enjoy the clean and refreshing water. Purification Elements have a long lifespan. And a pair of Black Purification Elements lasts for up to 6,000 gallons before needing replacement
  • 【MULTIPLE USES】 Ideal for home, travel, outdoor activities, and emergencies, such as water shortage,the filter can provide you with healthy, clean, and high-quality water, both at home and outdoors. If you have any issue with our products, please contact us right away, we will try our best to find a satisfactory solution for you within 24 hours. We promise to refund your money if our filter does not fit your original brand

User questions & answers

Question: Is it work just with indoors system filtration? or also works with outdoor
Answer: Mine did not come with instructions but there are good YouTube videos showing how to use, clean, and what each piece is for.
Question: Is there a way to know if your filter is completely used up
Answer: The filter with the spout weighs 86 grams by itself. The 32oz bag plus the filter with spout weighs 111 grams. This means the 32oz bag weighs 25 grams. All items were measured dry.
Question: What is the length of these water purification elements
Answer: I installed my filter in the 4-foot crawl space beneath the kitchen of our 100-year-old house.(NY) Half of the 'basement' is earth and shale. Dark drafty cold in the winter dark and warm in the summer. NO issues with moss or mildew.
Question: This filter is more cheaper than original brand,Does the function of water filter like berkey filter
Answer: Not for hot water to get into the filter

Product features

Provides Safe,Healthy and Clean Water for You

  1. Remove the upper chamber of the system
  2. Open the lid and unscrew the old water filter cartridges from the upper chamber
  3. Fill a clean container with clean water and soak the replacement water filter in the water for at least 30 minutes .Tilt the filter , while under water , so that any air bubbles can escape from both ends
  4. Remove the water filter from the water . Cover the holes with either your fingers or the blue caps that came with the filter , and shake the filter vigorously . Then tap them lightly on the counter to loosen any residual manufacturing dust
  5. Screw the new water filter onto the upper chamber
  6. Return the upper chamber to the system by placing it onto the lower chamber
  7. Fill the upper chamber with water and let it drain into the lower chamber . When the lower chamber is full , discard the first batch of water as it may contain residual manufacturing dust . The system is now ready for use

ANYHOW Replacement Filter for Black BB9-2 Cleaning Systems

  • BB9-2 black purification element for

Travel, Big, Royal, Imperial, Crown Series.

Propur Traveler, Nomad, King, Big Series.

Doulton Super Sterasyl & ATC Super Sterasyl filter, W9361122 & W9361123 system

Note

  • Please note this is a compatible spare part. This filter is not sourced by or sponsored by Berkey. The manufacturer’s name has been used for reference purposes only

High-efficiency Filtration

  • Efficiently removes contaminants like chlorine, heavy metals, taste and odor, sediments and large particles

Premium Quality Material

  • The BB9-2 Black Water Filter uses natural coconut shell activated carbon,lead-free and BPA-free housing

Perfect Fitting

  • This filter is designed to perfectly fit the original brand, without leaking water. Its functions and quality completely meet your needs, bringing you the perfect product experience

For Home

  • Comfort & Confidence: It’s your home. Take control of your tap water
  • Use this filter can purification universe of potential contaminants, giving you peace of mind

Outdoor Living

  • Adventure Ready: Travel the world, hit the trail, or relax at the lake
  • BB9-2 Black Water Filter can reduce harmful contaminants from raw freshwater sources like streams, lakes and ponds

For Health

  • When your water tastes great, you drink more of it.
  • You’re healthier. Enjoy purified water that retains the beneficial minerals your body needs

Preparedness

  • Prepara for sudden emergencies. purify raw, untreated freshwater in situations where a potable source of water is not available

Perform the Red Dye Test

  1. Remove the upper container from your water filter system and pour out any water it contains
  2. REMOVE FLUORIDE FILTERS and set in a safe place
  3. Empty the lower container and set aside in a safe place
  4. Place an equal sized clear glass under each Black Filter Stem, to collect the filtered water
  5. Place the upper container on the clear glasses, making sure that the water that exits each filter drips into its own glass
  6. In a separate container, add one teaspoon of red food coloring for every gallon of water your upper chamber holds, and mix
  7. Pour the red tinted water into your upper chamber. Your Black Filters should be fully submerged. NEVER DROP DYE ONTO YOUR FILTERS.
  8. Allow the full batch of water to filter from the upper container into the glasses below
  9. Examine the water in each clear glass. If the filtered water has a pink or red tint this would indicate that the filter is not working properly, and has failed the test
  10. If the water in all the glasses is clear, your filters are functioning properly. Empty the top container of red water and clean before resuming normal filtering

Doulton W9361122 Stainless Steel Gravity Filter System

: Doulton See more product details

Waterdrop Gravity Water Filter, Compatible with BB9-2 Black Filters & PF-2 Fluoride Filters. Interchangeable with Doulton Super Sterasyl and Traveler, Nomad, King, Big Series

Based on 171 reviews Check latest price
  • This filter set combines BB9-2 black purification elements and PF-2 fluoride replacement filter to absolutely remove contaminating substances from the outdoor water source. With this product, you can breathe the fresh air and immerse yourself in nature with fresh water.
  • The premium carbon block can absorb many impurities like sands, rust, sediment, bad taste, and odor. This product is characterized by uniform particles and a smooth surface to properly remove chlorine, which is the primary cause of bad taste. Afterward, much cleaner water passes through the granular activated carbon to achieve superior performance on taste improvement.
  • Durable life span without compromising performance. To attain the best product performance, we recommend you replace the BB9-2 filter every 6,000 gallons per pair and replace PF-2 every 1,000 gallons per pair, which will be different based on water conditions.
  • Food-grade materials. Not only do we firmly control the filter material but also adopt lead-free and BPA-free materials to produce the filter housing. Waterdrop aims to provide you with a broad protection service. We have outstanding customer support service to enhance the use of our products. Our agents are available at all times to expertly attend to your questions.
  • Compatible with: Black Replacement Filters (BB9-2) & Fluoride Filter Combo Pack (PF-2). Interchangeable with Travel, Big, Royal, Imperial and Crown Series and Gravity filter system. Waterdrop is an independent brand.

User questions & answers

Question: I only need the ceramic white filters changed in my big berkey. do these black filters work with the canister filters that are in my big berkey
Answer: Waterdrop Gravity Water Filter, Compatible with Black Filters & Fluoride Filters. Interchangeable with Doulton Super Sterasyl and Propur Traveler, Nomad, King, Big Series.
Question: are this filter removes chloramine too or just only chlorine
Answer: The filter uses natural coconut shell activated carbon and food-grade fluoride remover with the BPA free housing.It is safe and efficient to remove harmful contaminants such as chlorine, fluoride, arsenic, lead, odor, sediment and large particles, while reserving the beneficial substances to supplement necessary nutrients and trace elements.
Question: I have a propur Big, it has 7" white ceramic filters. How would I install the flouride filter that comes with these black filters
Answer: Install the black filter on the top of gravity water filter firstly, then install the flouride filter.
Question: Where is the independent testing/third party on these filters? This company has a history of being deceptive about their filters
Answer: Please do your own research. I remember watching several videos with varying opinions. I personally have been very pleased with mine for four or so months now.

Product features

Waterdrop 7990 Replacement Water Filter

Compatible Models:

BB9-2 black purification element and PF-2 fluoride/arsenic replacement filter.

Travel, Big, Royal, Imperial, Crown Series

Propur Traveler, Nomad, King, Big Series.

Doulton Super Sterasyl & ATC Super Sterasyl filter, W9361122 & W9361123 system.

This filter is not sourced by or sponsored by original brand.

*Please note this is a compatible spare part and the manufacturers’ names and part numbers have been used only for reference. Waterdrop is an independent brand.

Efficient filtration

The black and white filters are working together. The dual-stage filtration effectively reduces various harmful contaminants such as chlorine, fluoride, arsenic, lead, odor, sediment and large particles, ensuring the safety and quality of water for home, travelling and outdoor activities.

Superior materials

To ensure reduction, the filter uses food-grade fluoride reducer including activated alumina, carbon block and granular activated carbon made from coconut shell. Together with BPA-free housing, you can now enjoy safe water.

Perfect fitting

This filter is precisely designed to perfect fit the original brand without leaking water. Its functions and quality completely meet your needs, bringing you the perfect product experience.

Simple installation

All you need to do is to connect the black filter with the white filter, saving your time and energy.

Multiple uses

As an ideal system for home, travelling, outdoor activities and emergencies, the filter can provide you with clean and quality water at home and outdoors.

Cost-effective

Reasonable supply without compromising quality. Our supply is less than half of it, allowing you to enjoy clean and fresh water while saving money.

Better water for your family

To protect your family, Waterdrop provides quality, safe and great-tasting drinking water for you and your loved ones.

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