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