Presto Lifts Inc. introduces a new line of powered stackers with lift heights of 62, 101, 125 and 150 inches and capacities to 2,200 pounds. The PowerStak line features a narrow mast design, offset control handle and forward- and reverse-drive thumb switches on both sides of the handle for left- or right-hand operation. An auto-reversing belly switch protects operators from potential injury when walking the unit backwards, while an automatic brake immediately halts travel when reversed, says Presto Lifts. PowerStak vehicles use two 12-volt batteries. A 110-volt, built-in charger is standard. Units are available in fork-over design for use with open-bottom pallets or adjustable straddle design for use with closed-bottom pallets.