20 TON Hydraulic AIR/MANUAL SERVICE JACK Handle actuated release valve provides metered control at any desired lowering speed Wide stance and low center of gravity provide optimum stability under load stress Heavy gauge, steel frame helps prevent distortion and twisting High speed Air Turbo Motor U.S. Patent No. 5,341,723 is equipped to raise the load to the desired height efficiently, effortlessly and safely Capacity: 20 TON