20 Ton Air/Manual Bottle Jack Designed for operating either manually or pneumatically. Air hose can swivel in any direction of connection from air source. Fitted with a safety valve against overloading. 2 piece long handle allows ease of pumping. Extension screw gives added height when necessary. Speedy and versatile, air/hydraulic bottle jack is far quicker than using conventional hand operated hydraulic equipment and much safer since air power permits one-handed operation and enables user to watch load more closely. Heavy duty design makes them ideal for a wide variety of automotive, truck, industrial and construction work 5302A