Power Through Heavy Lifts: 20-Ton Air/Hydraulic Bottle Jack Tackle the toughest jobs with this professional 20-ton (44,092 lbs.) air/hydraulic bottle jack. Designed for heavy machinery, trucks, and trailers, it combines effortless pneumatic lifting with manual control-simply connect to an air compressor and press to raise, then rotate the valve to lower. Featuring a versatile lifting range of 10.2 in. to 20.1 in. and an extendable screw for precise adjustments, it adapts to various vehicles and equipment. Built for safety and durability, it includes a built-in overload valve, rust-resistant coating, and a double-spring system for stable, reliable operation. Compact, portable, and engineered for efficiency, this jack makes heavy-duty lifting simpler, faster, and safer. Material: Cast Iron.