New pneumatic air hydraulic bottle jack low profile 20 ton heavy duty hoist lift designed for operating either manually or pneumatically. The note there will NOT be read. Please contact our customer service before you return an item. Ideal for lifting heavy-duty machinery, industrial construction equipment, farm vehicles, and more Designed for operating either manually or pneumatically this jack is constructed of heavy-duty steel Features a lifting range between 260mm (10.23) to 510mm (20.08) with a 20 ton (40,000 lb) capacity Automatic dual spring controlled lowering system Fully polished and chromed cylinder rams enhanced with high-performance seals Push-button trigger control increases speed and efficiency, reducing lift time Fitted with a safety valve to prevent overloading Manufactured with precision for quality and performance.