GOLDENROD 495 Bowl Fuel Tank Filter with 1" NPT Top Cap See-thru Bowl has an easy to use sediment drain valve and allows for visual monitoring of fuel flow Maximum recommended flow rate of 25 GPM (gravity flow rate is approximately 5 gpm with a 24 inch head); working pressure up to 150 psi 366 sq. inches of filter surface for efficient action Removes microscopic particles (10 microns) of rust, sand, dirt, scale, and lint Zinc die-cast top cap with 1" NPT pipe fittings