Fuel Filters Set Filter Fuel Type Biodiesel Diesel Filter Design Cartridge Larger Filter is A Coalescer Smaller Filter is A Fuel/Water Separator Micron Rating 3 micron Height 9 11/16 in 11 5/8 in Length 9 11/16 in 11 5/8 in Width 4 in Outside Dia 4 in Inside Dia 13/16 in 1 3/16 in Includes (2) Grommets Attached F. Gasket O-Ring For Use With Marine Applications Gasket Material Nitrile