Vacuum Pump 8 cfm Displacement 1/2 hp HP Inlet Port Size 1/2 in ACME 1/4 in SAE 3/8 in SAE Voltage 110 to 120 V/220 V 50/60 Hz Hz 10 micron End Vacuum Overall Length 14 29/32 in Overall Height 10 19/32 in Overall Width 5 11/16 in Weight 22.5 lb Oil Capacity 29 oz Body Material Aluminum Special Features Extreme Shock Resistance