Removing particulates from your fuel is crucial in protecting vehicles from costly repairs and/or damage. Even the finest of contaminants can cause problems and we've developed our products with this in mind. The spin-on design makes change-out quick and easy and the convenient drain cock makes water removal easy. The filters can be used with gasoline, diesel, biodiesel blends up to B20, ultra-low sulfur diesel (ULSD), and ethanol blends up to 15% to remove common contaminants such as dirt, dust, and rust, providing the best in fuel purity. 1 1/2" inlet, Service Station Use.