Dual Stage 220V 50HZ 3CFM 90L/min; 110V 60HZ 3.5CFM 108L/min Ultimate Vacuum: 5*10^(-1)PA/25Microns ; Power: 1/3 HP Rotating Speed: 220W/50HZ 1440 r/min; 110W/60HZ 1720r/min Inlet Port: 1/4 SAE; Oil Capacity: 300 Size: 340*135*260 mm