Air Bag Scissor Lift Tables use factory air for clean, dependable, maintenance free operation. Designed to raise products up to an ergonomic working height. Safety features include pressure relief and pinch point guard. Warranty is void if not used with a filter-regulator. We do not recommend the use of a lubricator. Includes hand held control with up and down button mounted on 8 ft. cord. Incoming air must be clean, dry and regulated to 80 psi (min.). Requires 1⁄2" incoming airline. Standard feature are adjustable upper travel limit valve, state-of-the-art lifetime lubricated bearings and maintenance prop. Other sizes available, contact factory.