Hydraulic Ram Single Acting Lightweight Aluminum Nominal Capacity 20 ton Max Push Capacity 20 ton Stroke Length 3 7/8 in Nominal Stroke Length 4 in Effective Push Area 4.83 sq in Max Pressure 10 000 psi Oil Capacity Push 19.03 cu in Retracted Height 8.82 in Extended Height 12.76 in Outside Dia 3.35 in Plunger Dia 2.48 in Base Bolt Circle Dia 2.76 in Center Hole Dia 2 31/64 in Series RAC Includes Coupler Dust Cap