Bladder Accumulator Fluid Volume 231 cu in Vent Diameter 222 cu in Max Pressure 3 000 psi Shell Material - Accumulators Steel Diameter 6.61 in Overall Height 17.26 in Port Size Thread Standard SAE Hydraulic Fluid Port Dash Size -20 Hydraulic Fluid Port SAE/UNF SAE #20 (1-5/8-12) Operating Temp Range -20 to 200 Degrees F for Mineral Oil 32 to 200 Degrees F for Water and Water-Glycol