This Fuel Tank Filter is for use with common fuels including regular and unleaded gasoline, diesel fuel, fuel oil, and related additives including methyl, ethyl and isopropyl alcohol. It's also compatible with biodiesel blends up to 20%.It removes microscopic particles (10 microns) of rust, sand, dirt, scale and lint and has a zinc die-cast top cap with 3/4" NPT pipe fittings. A see-thru bowl allows for visual monitoring of fuel flow. | Dutton-Lainson Company 3/4 Fuel Tank Filter