Diaphragm Accumulator, Fluid Volume 20 cu in, Vent Diameter 20 cu in, Max. Flow 26 gpm, Max. Pressure 2,300 psi, Shell Material - Accumulators Steel, Diaphragm Material - Accumulators Hydrin, Diameter 3.74 in, Overall Height 2.55 in, Inlet Port Thread Size SAE #8, Hydraulic Fluid Port Dash Size -8, Pre-Charged No, Operating Temp. Range -40 to 176 Degrees F