Treats water from a household faucet, straight from a lake or hydration reservoir. Flow rate up to 40 psi. Includes hollow fiber filter, faucet adapter and hydration pack assembly kit. BPA-free. Remove 7 log -- 99.999% -- of all bacteria such as salmonella, cholera, E. coli, and Giardia. And 6 log -- 99.99999% -- of all protozoa such as Giardia and Cryptosporidium. Life expectancy is 1 million gallons. Sawyer.