Bottle Jack,Hydraulic,20 tons, Load Capacity 20 ton, Body Material Steel, Lifting Actuator Manual Handle, Minimum Lift Height 9 1/2 in, Maximum Lift Height 18 3/4 in, Power Source Mechanical, Standards ASME, PASE, Base Length 5 1/2 in, Base Width 5 3/8 in, Extension Screw Length 1 5/8 in, Features Extension Screw Adjusts to Accommodate Work Height, Heat Treated Critical Stress Areas, Ideal for Auto, Truck Service, Farm, and Shop Use, By-Pass Device Protects Against Over-Pumping