ATD Tools 7372 Low Profile Air/Hydraulic Bottle Jack - 20 Ton Capacity Lifting range: 8-1/8 inch to 15-1/2 inch Stroke: 4 inch Screw extension: 3-3/8 inch Jack base: 8-1/2 inch x 7-1/4 inch Air supply: 110-175 PSI at 7.8 CFM