Pro Series 22 Ton Air Hydraulic Service Jack

The ESCO Pro Series 22 Ton Air Hydraulic Service jack (Model 10390) is 100% air up and air down, this unique feature helps our jacks last for years. Other jacks on the market force air into the hydraulic cylinder to push the hydraulic fluid back out to lower the jack. The ESCO Pro Series 22 ton service jack utilizes a vacuum valve design that sucks the fluid back out of the cylinder head to lower the jack. This ensures you never push compressed air is never pushed into the cylinder, thus extending the life of the cylinder by many years. The 3-spring design allows for much more controlled lifting and lowering. Also, the 3-spring design better stabilizes the cylinder which prevents unnecessary side to side movement when lifting. Includes 3 extensions mounted on the handle; 0.75 in., 2 in. and 4 in. 3 position handle High grade seals and o-rings High grade aluminum piston and cylinder Strong durable handle with rubber grips and easy to use up/down air control Minimum height 8.5 in. Maximum height 21.5 in.