10 Best gravity water filter in the US

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Last Updated - April 20, 2024

Best Choice

1

Membrane Solutions
Membrane Solutions UV Countertop Water Filtration System, Stainless Steel 2.25G Gravity Water Filter with 3 Pack 0.1-Micron UF Filters, for Home, Camping, and RVing (U3 New)
Main highlights

Unrivaled Water Purification: Our countertop water filter system is crafted with a 0.1-micron Hollow Fiber Membrane, Activated Carbon, and enhanced by UV in a 3-stage process. Perfectly engineered for indoor and outdoor, ensuring clean, mineral-rich drinking water for your everyday needs, as well as for camping, RVing, emergencies, and disaster recovery.
Highly Effective and Advantageous: Our gravity water filter was validated to eliminate 99.99% Escherichia Coli 8099, tested by authoritative third-party lab testing - report no.2022SP10839R01E, dated: 23 Sep 2022. Reduce Chlorine and intercept rust, sediment, organic matter, and heavy metals while improving the odor and taste - report no.2022SP09492R01E, date: 7 Sep 2022.
Experience a Water Filtration Revolution: Our exclusive stainless steel countertop water filter with built-in UV Sanitization. The First and Only of its kind. Turn water from any source - tap, well, stream, or lake - into pure, safe, and refreshing drinking water that's also ideal for making your favorite beverages like coffee. (UV sanitization needs to power supply to activate, there are three options available)
Efficient and Sustainable: Gravity water filter system with a capacity of 2.25 gallons, three filters can produce water at the same time. Enjoy a flow rate 1.5 times faster than systems featuring only two filters. It comes with 3 elements, effectively treating up to 9,000 gallons of water, ensuring over 3 years of service for a family of four, saving you up to 68,000 plastic bottles (500ml).
Convenient and Low-maintenance: Assembling water filter system countertop at a moment's notice, and being straightforward and effortless to maintain. Comes with a stainless steel stand to make dispensing easier, no need to buy additional accessories. IT DOES NOT LOWER TDS VALUE, ensuring water's essential mineral balance remains untouched. (Note: This system is not sourced by or sponsored by Berkey. Membrane Solutions is an independent brand)
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9.9

Exceptional

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Best Value

2

Waterdrop
Waterdrop Gravity-fed Water Filter System, NSF/ANSI 42&372 Standard, 2.25G Stainless-Steel System with 4 Filters, Metal Water Level Spigot and Stand, Reduces Chlorine-King Tank Series, WD-TK-FS

23% Off

9.1 Easy installation

8.7 Flavor

8.4 worth the money

Why we love it

The Waterdrop King Tank can filter a large amount of water, making it great for families or groups.

The materials used are high quality and Food

grade, so you can be assured of the safety of the water.
Main highlights

Ultimate convenience: King Tank water filter system can be easily set up and install all by yourself without prior plumbing experience. The water filter system requires no electricity to work. All you have to do is install and enjoy clean and pure drinking water at all times, even when there is a flood or snowstorm. Please flush black carbon filter for 1 minute and fluoride filter for 20 seconds before use. Note: if faucet not fully compatible, splashing may occur but won't affect product.
Longer filter lifespan: The two fluoride filters (white) and the two carbon filters (black) can effectively filter up to 1,000 gallons of water and 6,000 gallons of water, respectively. This can save you up to 53,000 plastic bottles (500ml) over the space of 3.5 years. Go for the King Tank water filter if you expect an economical and sustainable solution to water filtration.Please note: This system is not sourced by or sponsored by Berkey. Waterdrop is an independent brand.
Efficient, advanced filtration: The filter media adopted in the King Tank is natural coconut activated carbon, which effectively reduces chlorine and improves taste. You can get up fluoride reduction and chlorine reduction. The filter can effectively reduce heavy metals, sediment, rust, soil, and other impurities while improving the odor and taste (Tested by third party laboratory). However, if there is a need for TDS reduction, feel free to check Waterdrop RO water purifiers.
Comprehensive accessories set: This filter system ensures safety while staying stylish by adopting the 304 food-grade stainless-steel material for the housing, which ensures a durable and rugged structure. The metallic water level spigot included in the system fits the chamber perfectly without any leaks. There is also a non-slip stand added to provide an improved user experience. These accessories come out of the box, and you don’t have to spend extra money buying any additional accessories.
Certification, large capacity: The Waterdrop King Tank gravity-fed water filter system comes with a 2.25-gallon large capacity, thereby meeting water demands of a family of 4 people for pure water indoors and outdoors. This water filter system has passed authoritative NSF/ANSI 372 certification，and the black carbon filter is certified against NSF/ANSI42 for the reduction of chlorine, taste and odor.
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9.6

Exceptional

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3

Membrane Solutions
Membrane Solutions Gravity Water Filter Pro 6L, 0.1-Micron Versatile Water Purifier Camping with Adjustable Tree Strap Storage Bag, Survival Gear for Group Emergency Preparedness

26% Off

9.3 worth the money

9.3 Light weight

Why we love it

Large Capacity: Holds 6L of water, perfect for groups.

4 Stage Filtration: Removes 99.99999 of bacteria, micro plastics, and more.

Backwash Solution: Detachable mouthpiece for easy backwashing.
Main highlights

Versatile Use Ways: More ways you can find besides the gravity water filter system, like using as a water filter straw direct, or adding an extension tube on water straw for more distance using, even connecting with water bottles. Backpacking water filter offers you clean drinking water anywhere, anytime
Superior Backwash Solution: Detachable mouthpiece connects with the common bottle for backwashing, no need for an extra syringe. No cumbersome fittings and lightweight. Easy carrying gravity water filter when putting all the parts in the storage bag
Extra-Large Capacity: After the survey, 6L capacity is the most appropriate solution for group water needs. Our water filter camping can provide you with enough reliable sources of pure drinking water at any time and anywhere
Easy to Hang on Trees: Adjustable tree strap fits the most trunks, minimum length: 22.5 inches and maximum length: 41.5 inches. No worry about losing, thanks for the one-piece design. Besides, our water filtration system camping meets with food-grade, BPA-free
4-Stage Filtration: Our camping water filter is made up of 0.1-micron hollow fiber ultrafiltration membrane, coconut shell GAC filter, and double PP fiber filter. Removes minimum 99.9999% of Escherichia coli, Cryptosporidium Parvum, Giardia lamblig, S. enterica Serovar typhimurium, odor, iodine, chlorine, heavy metals, filters up to 5,000 liters outdoors water
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9.4

Excellent

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4

Waterdrop
Waterdrop Gravity-fed Water Filter System, Reduces Lead and up to 99% of Chlorine, NSF/ANSI 42&372 Standard, with 2 Black Carbon Filters and Metal Spigot, King Tank Series, WD-TK-A

26% Off
Main highlights

[Ultimate convenience] King Tank countertop water filter system can be easily set up and installed all by yourself even you have no plumbing experience before. The water filter system requires no electricity to work. All you have to do is install it and enjoy clean and pure drinking water at all times, even when the weather is terrible like flood or snowstorm.
[Outstanding filtration] The filter media adopted in the King Tank is natural coconut activated carbon, which effectively reduces chlorine and improves taste. You can get chlorine reduction based on the test from a third-party lab. The filter can effectively reduce heavy metals, sediments, and other impurities while improving the odor and taste.
[Longer filter lifespan, 304 stainless steel] The two carbon filters (black) have the filtration capacity of up to 6,000 gallons of water. This can save you up to 45,000 plastic bottles (500 ml) over the course of 3 years. Go for the King Tank water filter if you expect an economical and sustainable solution to water filtration. And this system is made from 304 food-grade stainless steel and adopts a stainless-steel faucet design, which is not only fashionable, but also safe, firm and durable.
[Large capacity] The Waterdrop King Tank gravity-fed water filter system comes with a 2.25-gallon large capacity, thereby meeting water demands of a family of 4 people for pure water indoors and outdoors.Please flush filter for 1 min before use by connecting to faucet. Note: if faucet not fully compatible, splashing may occur but won't affect product.
Please note: The system has only two installation holes for carbon filters, limit 2 carbon filters (or with 2 fluoride) only, which DOES NOT reduce TDS level. If you prefer low TDS level, feel free to check Waterdrop RO water purifiers. This system is not sourced by or sponsored by Berkey. Waterdrop is an independent brand.
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9.3

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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5

Waterdrop
Waterdrop Gravity Water Filter Straw, Camping Water Filtration System, Water Purifier Survival for Travel, Backpacking and Emergency Preparedness, 1.5 gal Bag, 0.1 Micron, 5 Stage Filtration

9.7 Light weight

9.5 Flavor

9.5 Simple to use

Why we love it

5 stage filtration

1.5 gal water bag

Recyclable straw
Main highlights

Warm Prompt: If the gravity bag is used to filter water, turn on the drainage valve first to empty air from the hose before connecting with the straw to avoid no water flow in a vacuum state.
Versatile Uses: The Water Filter Straw can be connected with water bags or water bottles to filter water for drinking. Both ends of it can be disassembled and connected with the water bags and the water bottles to offer you clean drinking water anytime anywhere.
Recyclable Straw: With innovative backwash purifier function, the inside of the Water Filter Straw can be kept clean at all times and it is recyclable, safe and pollution-free. If the water flow decreases or the filter has been used for a long time, you can remove the mouthpiece, flush it with clean water. (Standard water bag can be used or pop bottle with thread diameter of 27.5mm can be filled clean water for backwashing the filter straw.)
Professional Combination: Waterdrop Gravity Water Filter Straw with 1.5 gal Gravity-Fed Water Bag is an exclusive water purification combination created for outdoor activities and first aid survival. The large-capacity water bag can hold up to 1.5 Gallons of water at a time, which is about 11 bottles of 500 ml bottled purified water, and can meet the all-day demand for outdoor water drinking.
Multi-scene Application: As a necessity for outdoor water purification, the Waterdrop Gravity Water Filter Straw is applicable to hiking, camping, domestic and international travel, emergency preparedness (tornadoes, rainstorms, earthquakes, floods, etc.) to meet the emergency water demand in a variety of situations.
Longer Lifespan: The Waterdrop Filter straw can provide safe drinking water up to 1,400 gallons (5,300 liters), and ensures the maximum water flow rate of up to 700 ml/min to provide more relaxed outdoor water drinking experience.
5-Stage Efficient Filtration: With adoption of premium-quality coconut shell activated carbon, 0.1 um ultrafiltration membrane and other raw materials, the Water Filter Straw can effectively reduce harmful substances like chlorine, particulates, sediment, stones, sand, dirt, bad taste &odor in water to ensure the water safety and deliver better drinking experience.
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9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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6

Purewell
Purewell 3-Stage 0.01μm Ultra-Filtration Gravity Water Filter System, NSF/ANSI 42&372 Certification, 304 Stainless Steel Countertop System with 2 Filters and Stand, Reduce 99% Chlorine, 2.25G, PW-OB

9.7 Simple to use

9.1 Easy to build

8.4 worth the money

Why we love it

3 Stage Filtration 99.99 accuracy

Small Filter Pore Optimal Flow Rate

Non slip Base Safe Stable
Main highlights

Smaller Filter Pore Size - The filter pore size of Purewell gravity water filter is 0.01 microns so that it can filter out 99.99% tiny materials from the water while other brands' filter pore size is only 0.2 microns. The smaller filter pore size, the higher filtering accuracy. What's more, Purewell water filter system can maintain the optimal flow rate (4 gallon/hour) while the filter pore size is smaller.
Long Lifespan and Replaceable - The two carbon filters (black) can provide up to 6000 gallons drinking water, the service life of a single filter element is 3000 gallons (According to different water quality, the lifespan of the filter elements would be a little different). But for optimum performance, the filter elements should be replaced every 6 months. NOTICE: The filter element DOES NOT lower TDS value.
Energy Saving - Relying on the principle of gravity filtration, no electricity is needed. The gravity water filter system is divided into upper and lower chambers. The upper chamber can be filled with unfiltered tap water, the lower chamber will get clean water after filtered. Because it does not require electricity, it can be used indoors and outdoors. NOTICE: When the bottom chamber is full of filtered water, please do not add tap water to the top chamber or it will leak out.
Complete Accessory Set: The system not only provides safe water but also adds a touch of style to your home with its 304 food-grade stainless-steel housing. This ensures a sturdy and long-lasting structure. The 304 stainless steel spigot that comes with the system fits the chamber perfectly, preventing any leaks. Additionally, a non-slip stand is included to enhance the user experience. These accessories are included in the package, you don't have to spend extra money on additional accessories.
3-Stage Filtration - The Purewell gravity water filter system adopts a composite filter technology, can reduce most contaminants. The black carbon filter has passed authoritative NSF/ANSI 42 certification, it employs a 0.01μm hollow fiber UF membrane, a silver ion membrane and an activated carbon block to reduce chlorine and intercept rust, sediment, organic matter and heavy metals, etc. This water filter system has also passed authoritative NSF/ANSI 372 certification.
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9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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7

Waterdrop
Waterdrop Gravity Water Filter Straw, Camping Water Filtration System, Water Purifier Survival for Travel, Backpacking and Emergency Preparedness, 1.5 gal Bag, 5 Stage Filtration, Pack of 2

9.9 For traveling

9.1 Flavor

8.0 Light weight

Why we love it

Reduces harmful substances

Improves odor and taste

Can be used with water bags or bottles
Main highlights

Warm Prompt: If the gravity bag is used to filter water, turn on the drainage valve first to empty air from the hose before connecting with the straw to avoid no water flow in a vacuum state.
Versatile Uses: The Water Filter Straw can be connected with water bags or water bottles to filter water for drinking. Both ends of it can be disassembled and connected with the water bags and the water bottles to offer you clean drinking water anytime anywhere.
Recyclable Straw: With innovative backwash purifier function, the inside of the Water Filter Straw can be kept clean at all times and it is recyclable, safe and pollution-free. If the water flow decreases or the filter has been used for a long time, you can remove the mouthpiece, flush it with clean water. (Standard water bag can be used or pop bottle with thread diameter of 27.5mm can be filled clean water for backwashing the filter straw.)
Professional Combination: Waterdrop Gravity Water Filter Straw with 1.5 gal Gravity-Fed Water Bag is an exclusive water purification combination created for outdoor activities and first aid survival. The large-capacity water bag can hold up to 1.5 Gallons of water at a time, which is about 11 bottles of 500 ml bottled purified water, and can meet the all-day demand for outdoor water drinking.
Multi-scene Application: As a necessity for outdoor water purification, the Waterdrop Gravity Water Filter Straw is applicable to hiking, camping, domestic and international travel, emergency preparedness (tornadoes, rainstorms, earthquakes, floods, etc.) to meet the emergency water demand in a variety of situations.
Longer Lifespan: The Waterdrop Filter straw can provide safe drinking water up to 1,400 gallons (5,300 liters), and ensures the maximum water flow rate of up to 700 ml/min to provide more relaxed outdoor water drinking experience.
5-Stage Efficient Filtration: With adoption of premium-quality coconut shell activated carbon, 0.1 um ultrafiltration membrane and other raw materials, the Water Filter Straw can effectively reduce harmful substances like chlorine, particulates, sediment, stones, sand, dirt, bad taste &odor in water to ensure the water safety and deliver better drinking experience.
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9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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8

Katadyn
Katadyn Gravity BeFree 3.0L Water Filter, Fast Flow, 0.1 Micron EZ Clean Membrane Personal Small Group Camping, Backpacking Emergency Preparedness, Clear, 8020470

9.9 Light weight

9.9 For traveling

9.3 Simple to use
Main highlights

Made from durable BPA-free Thermoplastic Polyurethane
Filters up to 1, 000 liters of contaminated water without using chemicals or other devices and hydrate quickly and easily with the free flow channels fast flow rate
Ez-clean Membrane is simple and easy to clean by simply shaking or swishing the filter to clean debris, no backflushing or extra tools required
Collapsible 3.0L hydrapak soft bottle flask packs down small
0.1 micron water filter removes harmful organisms like bacteria 99.9999% and protozoa like Giardia & Cryptosporidium 99.9%, surpassing EPA standards
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8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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9

Platypus
Platypus GravityWorks Group Camping Water Filter System, 4-Liter

9.9 Light weight

9.9 For traveling

9.5 Flavor

Why we love it

High capacity.

Meets EPA/NSF standards.

Gravity fed system.
Main highlights

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
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
Meets all EPA/NSF guidelines for removal of 99.9999% of bacteria and 99.9% of protozoa, including giardia, cryptosporidium, E. coli, salmonella, cholera
Includes 4-liter dirty water reservoir, 4-liter clean water reservoir, hollow-fiber microfilter, hoses, shutoff clamp, and storage sack
High-capacity, gravity-fed, hollow-fiber water filter system is ideal for group and family camping, outdoor adventures, and emergency preparedness
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8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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10

SimPure
SimPure Gravity Water Filter, Portable Gravity-Fed Water Purifier with 3L Gravity Bag, Tree Strap, BPA Free Survival Gear and Equipment for Camping Hiking Emergency Preparedness

9.1 Light weight

8.2 For traveling

8.0 Flavor

Why we love it

Versatile: Many uses.

Long lasting: Up to 3.5 years.

High quality: 0.1 micron filtration.
Main highlights

Very Versatile: Besides the gravity water filter system, the included filter can be used in many different ways. Use as a personal water filter, or add a 29.5-inch extension tube for more distance drinking. Even connect onto a water bottle.
Very Lightweight: Gravity water filter weighs just 2.8 ounces and can be completely rolled up to save space in your backpack. With 3L TPU gravity-fed bag can provide you enough reliable pure water. Ideal for backpacking, camping, or just keeping on hand for emergencies.
Long Lifespan and Speedy Treatment Time: Our water purifier camping has a lifespan of 5,000 liters (1320gallons), for a family of four uses up to 3.5 years. With a flow rate of 27 liters per hour, it won’t slow you down when you’re trying to make miles.
Easy to Use: Just hang on a tree with the tree strap, hands-free filtration, enjoy effort-free (no pumping, no squeezing, barely any waiting) filtered water within minutes.
0.1-micron Ultrafiltration: Our water filter camping made up of 0.1-micron hollow fiber ultrafiltration membrane, 5-micron coconut shell GAC filter, and 0.2-micron PP fiber filter, removes rate over 99.99999%, heavy metal, chlorine, odors.
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8.5

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Best Choice

10 Best gravity water filter in the US

1

Membrane Solutions UV Countertop Water Filtration System, Stainless Steel 2.25G Gravity Water Filter with 3 Pack 0.1-Micron UF Filters, for Home, Camping, and RVing (U3 New)

2

Waterdrop Gravity-fed Water Filter System, NSF/ANSI 42&372 Standard, 2.25G Stainless-Steel System with 4 Filters, Metal Water Level Spigot and Stand, Reduces Chlorine-King Tank Series, WD-TK-FS

Why we love it

3

Membrane Solutions Gravity Water Filter Pro 6L, 0.1-Micron Versatile Water Purifier Camping with Adjustable Tree Strap Storage Bag, Survival Gear for Group Emergency Preparedness

Why we love it

4

Waterdrop Gravity-fed Water Filter System, Reduces Lead and up to 99% of Chlorine, NSF/ANSI 42&372 Standard, with 2 Black Carbon Filters and Metal Spigot, King Tank Series, WD-TK-A

5

Waterdrop Gravity Water Filter Straw, Camping Water Filtration System, Water Purifier Survival for Travel, Backpacking and Emergency Preparedness, 1.5 gal Bag, 0.1 Micron, 5 Stage Filtration

Why we love it

6

Purewell 3-Stage 0.01μm Ultra-Filtration Gravity Water Filter System, NSF/ANSI 42&372 Certification, 304 Stainless Steel Countertop System with 2 Filters and Stand, Reduce 99% Chlorine, 2.25G, PW-OB

Why we love it

7

Waterdrop Gravity Water Filter Straw, Camping Water Filtration System, Water Purifier Survival for Travel, Backpacking and Emergency Preparedness, 1.5 gal Bag, 5 Stage Filtration, Pack of 2

Why we love it

8

Katadyn Gravity BeFree 3.0L Water Filter, Fast Flow, 0.1 Micron EZ Clean Membrane Personal Small Group Camping, Backpacking Emergency Preparedness, Clear, 8020470

9

Platypus GravityWorks Group Camping Water Filter System, 4-Liter

Why we love it

10

SimPure Gravity Water Filter, Portable Gravity-Fed Water Purifier with 3L Gravity Bag, Tree Strap, BPA Free Survival Gear and Equipment for Camping Hiking Emergency Preparedness

Why we love it

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