Sawyer SP303 - Squeeze Water Filtration System with Cnoc Premium 2 Liter BladderThe 0. 1 micron absolute hollow fiber membrane filter removes 99. 99999% of bacteria (e. g., salmonella, cholera, E. coli), 99. 9999% of protozoa (like giardia and cryptosporidium), and 100% of microplastics. Paired with a durable, BPA free, FDA approved 2 liter TPU bladder with a wide mouth for easy filling, this system is both effective and convenient. The reusable Sawyer Squeeze Filter lasts up to 100,000 gallons, with thick fiber walls that enable