Hydraulic Filter Fluid Type Hydraulic Filter Design Spin-On Thread Size - Automotive Filters 3/4 in Length 5 1/2 in Outside Dia 3 1/32 in Micron Rating 18 Description/Special Features Hydraulic Spin-on Height 5 1/2 in Width 3 1/32 in Includes 50 PSID By-Pass Valve I. Gasket