Sawyer Mini Water Filtration System - With this Mini filter from Sawyer you can filter up to 100,000 gallons from freshwater lakes, rivers or streams. Sawyer filters are so robust, they can be backwashed with high pressures and reused over and over again. The Mini filter is the most extremely versatile filter on the market enabling you to use it like a straw, squeeze filter, attached to a bottle and inline with a hydration pack. The Mini removes 99.99999% of bacteria (salmonella, cholera and E. coli) and 99.99999% of protozoa (cryptosporidium and giardia) with using any chemicals. Enjoy drinking fresh water with the Mini filter on your next adventure. Weight: 2 ozFilter Type: 0.1 Micron absolute hollow fiber membrane mini filterIncludes: Mini water filter, one 16 fl. oz. resusable squeeze pouch, a filter tip cap, drinking straw and a cleaning syringeBPA Free