This fuel tank filter is designed for use with common fuels including regular and unleaded gasoline, diesel fuel, fuel oil, and related additives including methyl, ethyl and isopropyl alcohol. It is also compatible with biodiesel blends up to 20% and removes microscopic particles (10 microns) of rust, sand, dirt, scale and lint. It features a zinc die-cast top cap with 1 inch NPT pipe fittings. The See-Thru bowl allows for visual monitoring of fuel flow. Maximum recommended flow rate is 25 gpm. Gravity flow rate is approximately 5 gpm with a 24" head. Working pressure up to 150 psi.