ESCO Equipment Supply Company15270 Flight Path Drive, Brooksville Fl, 34604 Phone (352) 754-1117 Toll Free (800) 352-9852 Fax (352) 754-4508www.esco.netAir-Operated Hydraulic Pressure Jack10771(OPERATION INSTRUCTION)Parts ManualMinimum: 5.50”Maximum: 11.90”