Load capacity: 6 tons Integrated bypass and overload valves Tough heat-treated extension screw Wide base of the hydraulic bottle jack provides added stability Durable all-steel construction for long life of the bottle jack Powerful bottle jack makes big loads easy to lift 8-1/2 in. to 13-1/2 in. lift range 1 year limited warranty High-quality glide-action pressure pump is great for commercial use