The ESCO Pro Series 20 Ton Air Hydraulic Bottle Jack can lift any load up to 40,000 lbs. This professional grade jack can be operated by air or controlled manually, includes bar for manual pump lifting. Each jack features a fully welded cylinder and frame that provides superior strength and extended life. Units are made with a chrome-plated piston for rust resistance as well as a chrome air motor to ensure reliability for years of use. Includes a 4 ft. swivel end air hose with easy to use handheld push-button air trigger. Air trigger includes 1/4 in. NPT fitted air inlet, in-line air filter (extends the life of air motor), and airflow latch for easier constant airflow while raising of the jack to load.