"This Torin Air/Hydraulic Bottle Jack provides power to suit any lifting job. Use it manually or pneumatically for a variety of jobs. Unit is certified and is 100 factory tested for reliability and safety to meet ASME PASE Safety Standards for Portable Automotive Service Equipment. Lift Capacity tons 5, Max. Lift Height in. 16 9/64, Min. Lift Height in. 8 1/4. Air hose swivels in any direction Safety valve prevents overloading Extension screw provides added height when necessary Lift range 8.26in.-16.14in.H Air pressure 80-120 PSI"