... :Pushing and Pulling Liquid Speed: 453kg/h Refrigerant Recovery Machine,1HP, with oil and gas separator, envrionmental and efficient~~Key Features ... refrigerants.6. The outer shell adopts one-off rotary technology with high intensity and concussion resistance.7. Overall protection device, ... , and dual voltage 110/220V function available. Refrigerant Recycling Machine,1HP, with oil and gas separator