Use the Sawyer Inline water filter to effectively treat water straight from a hydration reservoir, pump prefilter, household faucet or a homemade gravity system. Fast and effective hollow fiber membrane filter can be used to treat water while you drink. Filter physically removes particles, protozoa, and bacteria down to 0.1 micron in size, including giardia, salmonella and cryptosporidia. All Sawyer water filters exceed Environmental Protection Agency EPA recommendations for removal rates. Filter is fully field maintainable to ensure a fast flow of water system includes a faucet adapter for thorough back washing from a household faucet. All Sawyer water filters and purifiers come with a Million Gallon Guarantee, essentially eliminating the need to ever have to replace the filter cartridge. Includes hollow fiber filter, faucet adapter, 2 stainless-steel hose clamps, 1 tube connecter and 1 tube adapter.