XtraVac CM900A Packaging Machine, (2) 46.6" X 39.5" X 10" Chambers, Busch 302/12.5HP Vacuum Pump, 220V/3PH/60HZ, (4) 34" Seal bars, 39.3" between seal bars, stainless steel construction, Microprocessor controls, vacuum lid operates both fully and semi automatic, requires 80 PSI compressed air.