Fleetguard HF7961 hydraulic cartridge filter with synthetic media 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. Specifications: Length 18.31 inch Largest OD 4.17 inch Particle Size at Beta 75 10.1 Pressure Valve No Test Specification ISO 16889 Largest End ID 2.83 inch Particle Size at Beta 200 11.5 Efficiency Test Std ISO 16889 Gasket OD 0.49 inch