--- product_id: 740376855 title: "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" brand: "membrane solutions" price: "€ 51.45" currency: EUR in_stock: true reviews_count: 13 category: "Membrane Solutions" url: https://www.desertcart.ie/products/740376855-membrane-solutions-gravity-water-filter-pro-6l-nsf-ansi-42 store_origin: IE region: Ireland --- # NSF/ANSI 42, 372 & 401 certified purity 6L capacity for group hydration 0.1μm hollow fiber membrane filtration 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 **Brand:** membrane solutions **Price:** € 51.45 **Availability:** ✅ In Stock ## Summary > 💧 Drink Clean, Roam Free — Your Ultimate Gravity Water Filter Pro ## Quick Answers - **What is this?** 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 by membrane solutions - **How much does it cost?** € 51.45 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/740376855-membrane-solutions-gravity-water-filter-pro-6l-nsf-ansi-42) ## Best For - membrane solutions enthusiasts ## Why This Product - Trusted membrane solutions brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Gravity-Powered Freedom:** No pumps, no batteries—just pure gravity delivering up to 0.5L/min of filtered water wherever you roam. - • **Built Rugged, Packs Light:** Durable, puncture-resistant TPU with adjustable tree strap and compact storage bag fits seamlessly into your bug-out or hiking kit. - • **Next-Level Filtration Tech:** Advanced 4-stage system with 0.1-micron membrane and activated carbon removes chlorine, sediment, and odors for crisp, fresh taste. - • **Certified Safety You Can Trust:** Independently NSF & SGS tested to meet top water quality standards, ensuring every sip is clean and safe. - • **Hydrate Your Crew Effortlessly:** 6 liters of clean water capacity supports 3-6 people—perfect for group camping and survival scenarios. ## Overview The Membrane Solutions Gravity Water Filter Pro is a 6-liter, gravity-fed water purifier designed for group camping, hiking, and emergency preparedness. Featuring a 0.1-micron hollow fiber membrane and coconut shell activated carbon, it delivers up to 1,320 gallons of NSF/ANSI 42, 372, and 401 certified clean water without pumps or electricity. Lightweight, durable, and easy to pack, it’s engineered for reliable off-grid hydration with a flow rate of 0.5L per minute. ## Description Product description More Ways You Can Find Besides Gravity-fed System More Choices Gravity Water Filter Pro S2 Water Filter Straw C3 Filtered Water Bottle S2 Replacement Filter Upgrade Filter Straw U3P Gravity Water System Review: Great Setup! - 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. Review: Clean Water - I bought this as a gift for my son that loves hiking and camping. He has enjoyed this product very much. He has carried it on many hikes and camping trips. Uses it for fresh drinking water and if cooking something over a campfire. I would recommend this product and I would purchase again. ## Features - Built for Group Camping - Designed for camping, backpacking, and emergency preparedness, this 6L gravity water filter system provides fresh drinking water for 3–6 people. Ideal for basecamp, group trips, and survival situations where water matters most. - NSF Tested & Certified - Independently tested by NSF & SGS and meets NSF/ANSI 42, 372, and 401 standards. This portable water filter helps reduce chlorine, sediment, and odor from lakes, rivers, and streams. - Advanced 4-Stage Filtration - Features a 0.1-micron hollow fiber membrane, coconut shell activated carbon, and dual PP pre-filters. Long-lasting filter delivers up to 1,320 gallons (5,000L) of filtered water while maintaining strong flow performance. - Gravity-Fed & Pump-Free - No squeezing, no pumping, no electricity required. This gravity water filtration system provides up to 0.5L per minute—perfect for camping, hiking, off-grid living, and emergency water supply. - Lightweight, Durable & Emergency-Ready - Made with puncture-resistant, BPA-free materials and reinforced hanging strap for rugged outdoor use. Collapsible design packs easily into your backpack while remaining ready for disaster preparedness kits and bug-out bags. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08ZYMXLMH | | Best Sellers Rank | #14,283 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #26 in Camping & Hiking Water Filters | | Brand | Membrane Solutions | | Brand Name | Membrane Solutions | | Capacity | 6 Liters | | Container Type | Box | | Customer Reviews | 4.6 out of 5 stars 1,563 Reviews | | Global Trade Identification Number | 00850071881653 | | Included Components | 6L Gravity-fed Water Bag with Adjustable Tree Strap | | Installation Type | Not Required | | Item Dimensions L x W x H | 3.9"L x 2.3"W x 10.6"H | | Item Weight | 0.8 Pounds | | Manufacturer | Membrane Solutions | | Material | TPU | | Material Type | TPU | | Maximum Flow Rate | 500 Milliliters Per Minute | | Model Name | 6L Gravity Water Filter Pro | | Model Number | OESF021_M1 | | Other Special Features of the Product | Chlorine Reduction | | Part Number | OESF021_M1 | | Power Source | Gravity | | Product Dimensions | 3.9"L x 2.3"W x 10.6"H | | Purification Method | Hollow Fiber Membrane | | Special Feature | Chlorine Reduction | | Supported Water TDS Level Maximum (PPM) | 500 | | UPC | 850071881653 | | Warranty Description | 1 year manufacturer | ## Product Details - **Brand:** Membrane Solutions - **Capacity:** 6 Liters - **Included Components:** 6L Gravity-fed Water Bag with Adjustable Tree Strap - **Installation Type:** Not Required - **Material:** TPU - **Package Information:** Box - **Power Source:** Gravity - **Product Dimensions:** 3.9"L x 2.3"W x 10.6"H - **Purification Method:** Hollow Fiber Membrane - **Special Feature:** Chlorine Reduction ## Images ![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 - Image 1](https://m.media-amazon.com/images/I/71+BFNpWsFL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Can you hook up a sawyer mini filter to use as a replacement filter ?with this system?** A: Hi there, Yes, you can connect our gravity water filter system with sawyer mini filter. Thanks a lot! **Q: Does this bag suitable with lifestraw flex 2-stage water filter?** A: Hi there, Our gravity-fed water filter system is suitable with lifestraw flex 2-stage water filter, thanks a lot! **Q: Is the life straw compatible with this?** A: Dear Friend, Our camping water filter compatible with the LifeStraw Flex Multi-Function Water Filter System or LifeStraw Flex Advanced Water Filter with Gravity Bag, also the Sawyer water filter, Waterdrop water filter. Not compatible with LifeStraw Personal Water Filter. Thanks a lot! **Q: Can this gravity water filter system filter seawater?** A: Hi There, Our water filter survival can not filter seawater, thanks a lot. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great Setup! *by R***H on September 26, 2025* 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. ### ⭐⭐⭐⭐⭐ Clean Water *by S***. on March 9, 2026* I bought this as a gift for my son that loves hiking and camping. He has enjoyed this product very much. He has carried it on many hikes and camping trips. Uses it for fresh drinking water and if cooking something over a campfire. I would recommend this product and I would purchase again. ### ⭐⭐⭐⭐⭐ This is the one to get *by F***O on February 24, 2023* I researched these life saving water filter straws for awhile before I decided to get this one. The reason I chose this one over the others was because there is known flaw in the filter straws. They work great the first few times and the the water flows through really good and then it goes down to a trickle drip to not working at all. This one particular one, has where you can suck through the straw and fix it, it gets rid of the air bubble trapped inside. The other ones don't have this feature. Also I watched some videos users uploaded when they used the blue bag and got the most swampy water you could get and they filtered it and the water come out clean. It really looks to be the best unit to purchase to have on hand incase tshtf. I have not used my unit, but it arrived clean and looks new and I feel better that I have at least something to get water if the power grid goes down. ## Frequently Bought Together - Membrane Solutions Gravity Water Filter Pro 6L, 0.1-Micron Versatile Water Filter Survival with Adjustable Tree Strap, Storage Bag, Survival Gear and Equipment for Group Camping Emergency Preparedness - 5 High-Capacity Emergency Water Straws – Lightweight, Reusable, 1800-gallon Filters for Camping, Hiking, Travel, Biking, Survival, and Emergencies. No Expiration Date, Perfect for preparedness - Potable Aqua Activated Carbon Water Purification Tablets With Pa Plus --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ie/products/740376855-membrane-solutions-gravity-water-filter-pro-6l-nsf-ansi-42](https://www.desertcart.ie/products/740376855-membrane-solutions-gravity-water-filter-pro-6l-nsf-ansi-42) --- *Product available on Desertcart Ireland* *Store origin: IE* *Last updated: 2026-06-24*