For farm, construction, industrial, and service station use with gasoline and diesel fuels Filters microscopic particles and absorbs water from fuel Restricts fuel flow as water is absorbed, signaling the need for an element change 201 sq.in of filtration area 50 PSI and/or 12 GPM max recommendd working conditions Uses No.596-5 (SKU 622-1311) replacement cartridge Micron=10