Goplus Dual 2 Stage 4CFM 1/3HP Rotary Vane Deep Vacuum Pump HVAC AC Air Tool R410a R134 Power:240W; Voltage: 110V/60Hz Ultimate vacuum: 5 Pa;Flow rate: 4 CFM Power: 1/3 HP;RPM: 3400;Weight: about 12.5 lbs Overall dimension: 10.6"X4.3"X9";Oil capacity: 330 ML Package Includes: 1x 4CFM 2 stage vacuum pump ,1x oil container, 1x instruction