XtraVac 860 Double Chamber Machine, (2) 41" X 34" X 8" Chambers, Busch 302/12.5HP Vacuum Pump, 220V/3PH/60HZ, (4) 34" Seal bars, 28" between seal bars, stainless steel construction, Microprocessor controls, vacuum lid operates both fully and semi automatic, requires 80 PSI compressed air, with leveling legs.