Ideal for outdoor recreation, hiking, camping, scouting, domestic or international travel, and emergency preparedness High-performance 0.1 micron absolute inline filter fits in the palm of your hand and weighs just 2 ounces; 100% of MINI units individually tested three times to performance standards by Sawyer Attaches to a drinking pouch, standard 28 mm disposable water bottles, hydration packs, or use a straw to drink directly from your water source Removes 99.99999% of all bacteria (Salmonella, Cholera, and E. coli); removes 99.9999% of all protozoa (such as Giardia and Cryptosporidium); also removes 100% of microplastics Filter rated up to 100,000 gallons; Includes four Sawyer MINI filter and four cleaning plungers.