FF5613 Attributes :Overall Height150.11 mm, (5.91 in), Largest OD76.45 mm (3.01 in), Seam OD77.83 mm (3.064 in), Gasket OD71.88 mm (2.83 in), GASKET INSIDE DIAMETER 62.48 mm (2.46 in) Thread Size7/8-14 UNF-2B Standpipe NO FS16768: Attributes Overall Height141.73 mm (5.58 in), Largest OD76.71 mm (3.02 in), Seam OD76.68 mm (3.019 in), Gasket OD 70.1 mm (2.76 in) GASKET INSIDE DIAMETER62.48 mm (2.46 in) Thread Size3/4-16 UNF-2B StandpipeNO EMULSIFIED WATER SEPARATION0 % (0 %) FREE WATER SEPARATION50 % (50 %) EFFICIENCY, TWA BY SAE J 1985100 % (100 %) MICRON RATING BY SAE J 1985140 micron (140 micron) EFFICIENCY, TWA BY SAE J 198598.7 % (98.7 %) MICRON RATING BY SAE J 19855 micron (5 micron)