FS19709 Fleetguard Fuel Filter Water Sep (Pack of 6) Replaces Baldwin BF1267, Donaldson P552374, Luber Finer LFF8255, Onan A026K278, 1492106, Sierra 237760, Toro 638300 Overall Heigh: t84.33 mm (3.32 in). Largest OD: 76.45 mm (3.01 in). Seam OD: 77.98 mm (3.07 in) Gasket OD: 71.88 mm (2.83 in). Gasket Inside Diameter: 62.48 mm (2.46 in). Thread Size: M16 X 1.5-6H INT. Standpipe: NO Emulsified Water Separation: (99%). Free Water Separation: (99%). Efficiency, TWA BY SAE J 1985: (99%). Micron Rating By Sae J 1985: (3 micron) Modern fuel injection systems require fuel be free of both particulate and water contamination. Fleetguard Spin-on Fuel Filters keep fuel clean and engines running at maximum efficiency.