Sawyer SP302 - Squeeze Water Filtration System with Cnoc Premium 1 Liter BottleThe 0. 1 micron absolute hollow fiber membrane filter removes 99. 99999% of bacteria (such as salmonella, cholera, and E. coli), 99. 9999% of protozoa (like giardia and cryptosporidium), and 100% of microplastics for clean, safe drinking water. Paired with a 1 liter collapsible, BPA free, FDA approved TPU bottle that packs small yet stands upright when full, this system is lightweight and easy to use. The Sawyer Squeeze Filter is reusable, lasting up