• Pre-order now for select colors and variants that are out of stock. Estimated to ship by April 1st.

• Survival Gear Set for Outdoor Water Needs

Includes a personal water filter, portable straw case, and durable carabiner. Quickly access drinkable water in outdoor settings—perfect for hiking, camping, scouting, international travel, and emergency situations. Makes a thoughtful gift for outdoor enthusiasts.

• Exceptional Performance

Equipped with a 0.1-micron 4-stage filtration system including a coarse filter screen, PP cotton, coconut shell activated carbon, and hollow fiber ultrafiltration membranes, this purifier removes 99.99999% of chlorine while improving flavor. The hard EVA travel case ensures your filter stays protected and lasts longer.

• Wide Compatibility: 

Our case is custom-made for Membrane Solutions straw water filter (Blue, Camo, Orange, pick the color you like), wear-resistant, shockproof, and designed to offer double protection to keep the straw filter away from dust, scratch and shock, but the protective case not suitable for the WS02 water filter.

• Portable & Long Life-Span

This straw filtration at only 6.7" long and 1" in diameter fits any bottle, cup, or glass. It whole set weighs just 4.16 ounces and fits to hang on your backpack or bicycle. Mini water filter has a long lifespan and ensures it provides up to 3,000 liters (792 gallons) of drinking water. You can take it anywhere you want conveniently.

• High-Quality Materials

Compared to the big filter straw on the market, Membrane Solutions water filters have a smaller frame, more convenient to use. The straw storage case is made of soft villus lining and premium oxford shell, with a mesh pocket inside to store some spare parts and essential tools, even use it as your pen case.