Sierra Fuel Filter/Water Separators are high flow, high capacity, 21 micron filter elements for use on gasoline powered boats. 66 Pleats – More pleats means more capacity. Best flow rate of all major brands. Will not separate 2 cycle oil from gasoline. Made in the U.S.A.Features21 Micron filter element with high pleat count. More pleats means more filtrationSteel end caps on elementsHeavy-duty springPowder coated outside, epoxy coated inside for corrosion protectionMeets OEM specificationsWill not separate 2 cycle oil from gasolineDo not use with diesel fuelBest flow rate of all major brandsCompatible Brands & Part Numbers:Replaces:Mallory – 9-3781Mercruiser Stern Drive – 35-55501, 35-57250, 35-60494, 35-604941, 35-60494A5, 35-802893Q01, 35-8052691, 35-806771, 35-807172Mercury Marine -35-52456, 35-604941, 35-802893Q, 35-805269, 35-8052691, 35-807172Yamaha -ABA-FUELF-IL-TR, ABB-FUELF-IL-TR