Membrane Solutions Straw Water Filter for Survival, Emergency, Hiking, Camping, Travel, Hunting, Fishing, Team and Family Outing

Since 2006, Membrane Solutions' mission has been to provide clean water and air worldwide through advanced membranes. We've become global purification leaders certified by ISO9001 and NSF, and our cutting-edge technology empowers products meeting American standards to truly purify water and air. Membrane Solutions - innovation and sustainability for a brighter future.

Our personal water filter straw will be indefinite if unused and stored in a protected environment, moderate temperature, low ozone, etc. The upgraded straw can not only connect to disposable water bottles of 28mm threading as a squeezable water filtration system, but it can also be used as a replacement filter for different gravity systems, including our own 6L gravity system "B08ZYMXLMH".

The upgraded water filter has a larger filtration capacity of 5,000 L (up from 1,500 liters before), and the water flow rate is faster. To drink the filtered water quickly, first stand the dry water filter up in drinking water for 1-2 minutes or rinse the straw from the "mouthpiece" side until the inside is wet. After each use, backwash with clean water and vertically place the straw to dry.

We suggest always using the best fresh water source to backwash the straw filter after each use to extend its lifetime. Note that it does not work for seawater.

Our Upgrade 5-Stage Filtration System includes a coarse filter screen, double-layer PP cotton fiber, coconut shell activated carbon, and hollow fiber ultrafiltration membranes. This can remove 99.99999% of harmful substances (pollution, odor, chlorine, and organic chemicals) and improve the taste, while ensuring the water's essential mineral balance remains untouched.

Our pore size of 0.1 microns can filter out 99.99999% of harmful particles, compared to the 0.2-micron water purifier straws on the market. This maintains an optimum flow rate of 16.9 fl oz/min (500ml/min) while providing high filtration accuracy.

Made of durable, food-grade, BPA-free plastics, our water filters have a smaller frame and more convenient, versatile filtering modes. They can connect to soft water pouches or disposable water bottles, and even serve as a replacement gravity filter for family and group use.

Visit our brand store for more options, including the Upgrade Filter Straw, Squeezable Filtration Kit, WS02 Water Filter Straw, Gravity Water Filter Pro, U3P Gravity Water System, and RV Water Filter. All are SGS certificated and ideal for recreation, hiking, camping, scouting, travel, and emergency preparedness, providing the safest water in the worst environments.

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