Hydraulic, Spin-On Fleetguard® HF6521 hydraulic cartridge filter is designed to help keep your precision hydraulic systems running as intended, providing a solution for various applications. This filter meets or exceeds the equipment OEM quality and performance and is the first aftermarket replacement available on the market today, bringing your operation top-quality performance and an overall unbeatable total cost of ownership. Largest OD 93.47 mm Length 205.49 mm Thread Size 1-12 UNF-2B BPV OPENING DP 0 kPa Gasket Inside Diameter 62.48 mm Gasket OD 71.88 mm Seam OD 94.49 mm Standpipe NO TWA MICRON @ BETA=2 14 micron TWA MICRON @ BETA=20 28 micron TWA MICRON @ BETA=75 36 micron