Membrane Solutions Gravity Water Filter Pro 6L, NSF/ANSI 42&372&401 Certified, 0.1 μm Versatile Water Purifier Camping with Adjustable Tree Strap Storage Bag, Survival Gear for Emergency Preparedness
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Availability:
In Stock.
Arrives
Wednesday, Mar 4
Style: 6L-Blue
Features
- 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 drinking water at anytime and anywhere. Especially in an emergency.
- Survival Gear for Outdoor Water: Certified by NSF & SGS (Test Report NBF21-004693-01) and rigorously tested to meet NSF/ANSI 42, 372, 401 standards, this portable water filtration system ensures drinking water in seconds. The NSF certifications validate its ability and reliability, its designed for hiking, camping, global travel, or emergenciesproven by science, trusted by adventurers.
- 4-Stage Filtration: Our S2 camping water filter is made up of 0.1-micron hollow fiber ultrafiltration membrane, coconut shell GAC filter, and double PP fiber filter. Removes 99.99999% of odor, chlorine, make water taste better. What's more, it can maintain the optimal flow rate (500ml/min) while the filter pore size is smaller. Long lifespan to provide at least 1320Gal(5,000L) water.
- 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.
- 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 drinking water anywhere, anytime.
- 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 FDA, food-grade, BPA-free.
Brand: Membrane Solutions
Special Feature: Chlorine Reduction
Product Dimensions: 3.9"L x 2.3"W x 10.6"H
Material: TPU
Capacity: 6 Liters
Included Components: 6L Gravity-fed Water Bag with Adjustable Tree Strap
Package Information: Box
Installation Type: Not Required
Purification Method: Hollow Fiber Membrane
Power Source: Gravity
Brand: Membrane Solutions
Special Feature: Chlorine Reduction
Product Dimensions: 3.9"L x 2.3"W x 10.6"H
Package Information: Box
Installation Type: Not Required
Power Source: Gravity
Item Weight: 0.8 Pounds
Model Name: 6L Gravity Water Filter Pro
Maximum Flow Rate: 500 Milliliters Per Minute
Supported Water TDS Level Maximum (PPM): 500
UPC: 850071881653
Global Trade Identification Number: 53
Manufacturer: Membrane Solutions
Item Weight: 12.8 ounces
Item model number: OESF021_M1
Date First Available: March 24, 2021
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Mar 4
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Style: 6L-Blue
I recently had the pleasure of using the Membrane Solutions Gravity Water Filter Pro 6L, and I must say it has exceeded my expectations in terms of performance, convenience, and reliability. This innovative water filtration system has quickly become an essential part of my daily routine, and I am thoroughly impressed with its functionality. The primary feature that sets the Membrane Solutions Gravity Water Filter Pro 6L apart is its exceptional filtration capabilities. With a filtration accuracy of 0.1 microns, it effectively removes bacteria, protozoa, sediments, and other contaminants from water sources, providing clean and safe drinking water. The advanced filtration technology ensures that the water you consume is free from harmful substances, making it ideal for outdoor adventures, emergency preparedness, or everyday use. The gravity-fed design of this water filter is a game-changer. It eliminates the need for electricity or complicated installation processes, making it incredibly convenient and easy to use. Simply fill the upper chamber with water, and let gravity do the rest. The filtered water collects in the lower chamber, ready for consumption. This hands-free operation allows you to multitask and ensures a continuous supply of filtered water without any hassle. The capacity of the Membrane Solutions Gravity Water Filter Pro 6L is another impressive aspect. With a generous 6-liter capacity, it can cater to the hydration needs of individuals, small groups, or even families. The large storage capacity is especially beneficial during outdoor activities, camping trips, or in situations where access to clean water may be limited. I appreciate the durable and high-quality construction of this water filter. The BPA-free materials and food-grade components ensure that the filtered water remains safe and free from any potential contaminants. The system is designed to be long-lasting, providing reliable filtration over an extended period. Maintenance is a breeze with the Membrane Solutions Gravity Water Filter Pro 6L. The filter elements are replaceable and have an impressive lifespan, depending on usage and water quality. The filter replacement process is straightforward, and the manufacturer provides clear instructions for optimal performance. In terms of value for money, this water filter is an excellent investment. The combination of its exceptional filtration capabilities, convenience, and durability make it a worthwhile purchase. You can have peace of mind knowing that you are investing in a reliable and efficient water filtration system that provides clean and safe drinking water. In conclusion, I highly recommend the Membrane Solutions Gravity Water Filter Pro 6L to anyone in need of a reliable and convenient water filtration solution. Whether you're an outdoor enthusiast, a frequent traveler, or someone concerned about the quality of your drinking water, this filter delivers on all fronts. With its impressive filtration accuracy, ease of use, and large capacity, it ensures that you have access to clean and safe drinking water wherever you go. Choose the Membrane Solutions Gravity Water Filter Pro 6L and enjoy the convenience of pure water at your fingertips.
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Reviewed in the United States on September 18, 2023 by Michel Hadorn
Style: 6L-Blue
While I've not actually been able to test the flow rate of this filter in a gravity configuration, it works exceptionally well with smart water bottles. It filters the water well to make it more clear, it tastes good, and I've not gotten sick even though I've had some very mild immune responses; like one may experience after some vaccinations. From what I understand, this is just my body responding to trace amounts of bacteria which may still get into my clean water from cross contaminating it with dirty hands, and results in resistances to local bacteria. Not unlike how seasonal allergies may be less likely to significantly affect local populations who grew up with those allergens. The instructions are clear and easy to follow, but this whole setup is so intuitive I didn't need them anyway. I like how compact this kit is, rolling up nicely in it's bag, and the wide mouth of the flexible collection bag is very useful for scooping water out of places where a bottle cannot reach it. The system does not seem to leak, and I feel safe drinking the water it filters from running sources. But I still prefer to purify the filtered water I collect from standing sources with some Aquatabs, just in case of pet waste on the trails, or dirty shoes walking through the mud.
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Reviewed in the United States on September 26, 2025 by Raven Kenneth
Style: 6L-Blue
I've been going to the BWCA for 40+ years and have used various filters, capsules and other means to filter water and this is by far the most convenient and easiest filter I've ever used. Packs small and is fairly lightweight, has good water flowage and is easy and quick to fill. Great product!
Reviewed in the United States on July 22, 2025 by Mike
Style: 6L-Blue
It clogged really fast, but that could have been user error. It's gravity fed, so it's naturally slow. Other than that, it worked like a charm. Packed up easy, easy to set up, easy to use. Kept us hydrated backpacking through the Uinta mountains. Some other guys had ones that fed into another back so more water was available faster. You might want to look into those types
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Reviewed in the United States on July 9, 2025 by kORY
Style: 1G-Blue
Very accurate description and the video helped sell this product. I'll keep it as an emergency in my back pack.
Reviewed in the United States on January 2, 2026 by Rusty Gator
Style: 6L-Blue
UPDATE: I emailed the company about filter not working and they got right back to me. They asked a couple of questions and have mailed me a replacement filter. They were very responsive and easy to work with. My new filter is on its way. I will continue to update. I bought this last week. I tested it and worked great! I decided to use again this week just to be sure I have it all down and it has refused to work. The water would go through the hose so I removed the filter and it was not the bag or the hose. The filter itself is not allowing more than a drip through. I tried using it as a straw that did not work. I've taken it apart and can't see any obstructions. I have emailed the company and will update this review once it has been resolved. When it worked, it worked great! And the water tastes clean.
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Reviewed in the United States on September 21, 2023 by C. VanTassel
Style: 6L-Blue
This gravity filter system works great. It filters water fast, holds a lot of water. Easy to clean, and it’s pretty good lightweight option for multi-day camping trips.
Reviewed in the United States on September 1, 2025 by Levi Polley
Style: 1G-Blue
Easy to put together. Filters water quickly.
Reviewed in the United States on January 25, 2026 by S Pate