Portable Water Filter for Survival, Travel, and Outdoor Activities

Membrane Solutions' mission since 2006 has been to provide clean water and air worldwide through advanced membrane technology. We have become global leaders in purification, certified by ISO9001 and NSF. Our cutting-edge technology empowers products that meet American standards, truly purifying water and air.

Membrane Solutions - innovation and sustainability for a brighter future. Visit our brand store for more.

Our personal water filter straw has an indefinite shelf life if unused and stored in a protected environment with moderate temperature and low ozone levels. The upgraded straw can not only connect to disposable water bottles with 28mm threading as a squeezable water filtration system, but also serve as a replacement filter for different gravity systems, including our 6L gravity system "B08ZYMXLMH".

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

To extend the straw filter's lifetime, we suggest using the best fresh water source to backwash the straw after each use. Note that it does not work for seawater.

Our Upgrade 5-Stage Filtration System includes a coarse filter screen, double-layer polypropylene 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) while maintaining the water's essential mineral balance.

With a pore size of 0.1 microns, our water purifier straw maintains an optimal flow rate of 16.9 fl oz/min (500 ml/min) while filtering out 99.99999% of harmful particles, compared to the 0.2-micron water purifiers on the market.

Made of durable, food-grade, BPA-free plastics, our water filters have a smaller frame and more versatile filtering modes than the big filter straws on the market. They are ideal for connecting to soft water pouches or disposable water bottles, and can even serve as a replacement gravity filter for family and group use.

Our products are SGS-certified survival gear for outdoor water needs, providing a simple and quick way to obtain clean drinking water for recreation, hiking, camping, scouting, travel, and emergency preparedness.

product information: