--- product_id: 740376855 title: "Membrane Solutions 6L Gravity Water Filter Pro for Group Camping | NSF/ANSI 42, 372 & 401 certified; 0.1-micron 4-stage filter, 1,320-gal life for family camping and emergency water backup" brand: "membrane solutions" price: "HK$617" currency: HKD in_stock: true category: "Membrane Solutions" url: https://www.desertcart.hk/products/740376855-membrane-solutions-6l-gravity-water-filter-pro-for-group-camping store_origin: HK region: Hong Kong --- # 0.1-micron 4-stage filter, 1,320-gal lifespan 6L capacity for group hydration NSF/ANSI 42, 372 & 401 certified purity Membrane Solutions 6L Gravity Water Filter Pro for Group Camping | NSF/ANSI 42, 372 & 401 certified; 0.1-micron 4-stage filter, 1,320-gal life for family camping and emergency water backup **Brand:** membrane solutions **Price:** HK$617 **Availability:** ✅ In Stock ## Summary > 💧 Stay refreshed, stay prepared—filter your adventure with ease! ## Quick Answers - **What is this?** Membrane Solutions 6L Gravity Water Filter Pro for Group Camping | NSF/ANSI 42, 372 & 401 certified; 0.1-micron 4-stage filter, 1,320-gal life for family camping and emergency water backup by membrane solutions - **How much does it cost?** HK$617 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/740376855-membrane-solutions-6l-gravity-water-filter-pro-for-group-camping) ## 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 - • **Hydrate Your Crew Effortlessly:** 6L gravity-fed system supports 3-6 people—perfect for group adventures and emergency readiness. - • **Certified Clean Water Confidence:** NSF & SGS tested to reduce chlorine, sediment, and odors—drink with peace of mind anywhere. - • **Pump-Free, Stress-Free Hydration:** Gravity-fed design delivers up to 0.5L/min—no batteries, no pumps, just pure convenience. - • **Advanced 4-Stage Filtration Power:** 0.1-micron hollow fiber membrane plus activated carbon ensures crisp, fresh water every time. - • **Rugged, Lightweight & Ready to Go:** Durable, BPA-free, collapsible design fits your pack and your lifestyle—ideal for off-grid survival. ## Overview The Membrane Solutions 6L Gravity Water Filter Pro is a portable, gravity-fed filtration system designed for group camping and emergency use. Certified to NSF/ANSI 42, 372, and 401 standards, it features a 0.1-micron 4-stage filter that delivers up to 1,320 gallons of clean water. Lightweight, durable, and pump-free, it provides reliable hydration for 3-6 people with a flow rate of 0.5L per minute, making it an essential tool for outdoor enthusiasts and survivalists alike. ## Description desertcart.com : Membrane Solutions 6L Gravity Water Filter Pro for Group Camping | NSF/ANSI 42, 372 & 401 certified; 0.1-micron 4-stage filter, 1,320-gal life for family camping and emergency water backup : Sports & Outdoors ## 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 | #5,861 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #11 in Camping & Hiking Water Filters | | Brand Name | Membrane Solutions | | Capacity | 6 liters | | Container Type | Box | | Customer Reviews | 4.6 4.6 out of 5 stars (1,627) | | 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 | 12.8 ounces | | Manufacturer | Membrane Solutions | | 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 | | Purification Method | Hollow Fiber Membrane | | 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 6L Gravity Water Filter Pro for Group Camping | NSF/ANSI 42, 372 & 401 certified; 0.1-micron 4-stage filter, 1,320-gal life for family camping and emergency water backup - 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. ## 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.hk/products/740376855-membrane-solutions-6l-gravity-water-filter-pro-for-group-camping](https://www.desertcart.hk/products/740376855-membrane-solutions-6l-gravity-water-filter-pro-for-group-camping) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-07-28*