Made from superior quality high-grade steel, the Hydraulic Bottle Jack features a fully welded cylinder for maximum strength and a forged base for extra durability. With a high height of 18.30" and a low height of 9.10", this manual bottle jack has a 12-ton capacity with extension screws that provide a 2.75" adjustment for maximum height. Widely used in heavy-duty truck, agriculture, mining and oil-field operations, this AFF product has an oil by-pass system that provides overload protection and a leak free operation. The AFF Super Duty 12 Ton Bottle Jack meets ANSI/ASME PALD 2014 Standards. Established in 1963, American Forge & Foundry (AFF) has provided value through our selection of highest-quality, "forge tough" heavy-duty and automotive service equipment. From our extensive inventory of parts to the hundreds of service depots available nationwide our experienced team is committed to ensuring that the AFF brand stands for durability, safety, and customer care.