Portable Water Filter Straw – 4-Stage Purifier, NSF Certified, 5,000L Capacity

From the brand

Since 2006, Membrane Solutions’ mission is water and air worldwide through advanced membranes.

We’ve become global purification leaders certified by ISO9001 and NSF, Our cutting-edge tech empowers products meeting American standards to truly purify water and air.

Membrane Solutions – innovation and sustainability for a brighter future.

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​Survival Gear for Outdoor Water Needs​​ – 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 to remove odor and particles, while maintaining lead-free material. Lightweight and compact, it’s designed for reliability during hiking, camping, global travel, or emergencies—proven by science, trusted by adventurers.
Innovative Detachable Design: Our S2 water filter straw now is the only detachable straw on the market, both ends can be disassembled. That means it just needs to replace the filter element anytime and anywhere, no need to replace the straw tube shell frequently, which is truly money-saving.
Superior Backwash Solution: Detachable mouthpiece connects with the common bottle for backwashing, no need for an extra syringe, make easier. Camping water filter does not expire like water purification tablets and does not require batteries, very easy to use.
4-Stage Filtration: Our backpacking 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, heavy metals, 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 20,000 liters water.
Versatile Filtering Modes: Direct use as a personal water filter; also ideal for connecting with soft water pouch or standard disposable water bottles to get water; even add an extension silicone pipe (Tubing NOT Included) on emergency water filter for more distance to drink; plus, as a replacement gravity filter to provide enough fresh water for family & group.
Emergency Survival Tool: Match with Food-grade and BPA-Free materials ensure drinking water. An ideal tool for multiple purposes such as backpacking gear, hiking gear, travel accessories, camping & survival equipment and emergency preparedness items. Even the hiking water filter is also suitable as a gift for hikers.