The hydraulic bottle jack is designed for residential and commercial use. It is industrial welded and engineered using a drop forged alloyed steel construction that is ideal for quality and DURABILITY: The inner/outer welded structure and steel construction will keep your bottle jack leak-free and give it an overall stronger build. The fully welded structure is designed for hard-hitting commercial USE: making large loads easy to lift. A wide, rugged base adds stability and strength. The lifting range is 9-7/16" to 17-5/8" with a 20 ton (40,000 lb.) CAPACITY: It features a high-quality glide-action pressure pump designed to lift with minimal muscle and effort and has an integrated built-in oil-bypass and overload valve that protects the hydraulic system from extending beyond its travel limits. Hydraulics are powered with a high-quality oil, which offers better corrosion resistance and high/low temperature flexibility, allowing the unit to operate at temperatures between 40 degrees Fahrenheit and 105 degrees Fahrenheit. Piston ram utilizes a Y-style polyurethane sealing ring with backup ring, preventing the load from falling slowly. This powerful bottle jack is ideal for lifting cars, trucks, SUVs, farm vehicles, heavy-duty machinery and industrial equipment. It can also be used for military applications, agricultural and industrial environments where the equipment receives heavier abuse. This unit is 100% factory tested for reliability and safety. Includes a limited 1 year manufacturer warranty.