XtraVac 780 Double Chamber Machine, (2) 33" X 29" X 10" Chambers, Built in Busch 7.5 HP Busch Vacuum Pump, 220V/3PH/60HZ/25 Amps, (4) 31" Seal bars, 25" Between Seal bars, stainless steel construction, Microprocessor controls, mounted on locking casters.