GOLDENROD (497) Bowl Bio-Flo Fuel Tank Filter with 1" NPT Top Cap Bio-Flo filter for use with biodiesel blends up to 100 percent Removes microscopic particles (10 microns) of rust, sand, dirt, scale, and lint Nickel-plated top cap with 1" NPT pipe fittings See-Through bowl allows for visual monitoring of fuel flow Maximum recommended flow rate of 25 GPM; working pressure up to 150 psi