The AME International JACKZILLA Premium 20-Ton Air/Hydraulic Bottle Jack, No. 14455, is designed for tire changing applications on commercial fleets, agricultural, construction, and maintenance equipment. It comes with a 10" by 10", 50-ton jack plate for optimal weight displacement on uneven or non-compacted surfaces as well as a Flexzilla hose assembly for maximum durability in all climate conditions. Additionally, the unit has an in-line regulator that limits inlet pressure to 94 psi to prevent air bypass. The bottle jack reaches a maximum height of 18.5" (minimum height of 9.7").