MPN: 030159 Welded tank and frame – for stronger performance in rough service conditions Super thick 1-1/8” base – provides and incredibly stable and strong lifting platform, especially on poor surfaces Built tough for the rigours of the heavy duty trucking, agricultural and fleet business Operating pressure 110-120 psi Dual return springs for faster ram retraction Safety bypass Precision machining reduces O-ring damage Superior quality O-rings for longer life and greater seal Premium components provide for a 4:1 greater life expectancy Manual Function allows for normal operation anywhere, even without an air supply Specifications Lifting Capacity 20 Ton(s) Lowered Height 10-3/8" Raised Height 20-5/8" Operation Type Air Hydraulic Lift 6.3"/8" Screw Extensions 3.3"