... Speed:Pushing and Pulling Liquid Speed: 453kg/h Refrigerant Recovery Machine,1HP, with oil and gas separator, envrionmental and efficient~~Key ... -12,R-134a,R-401C,R-406A,R-500;Cat. IV:R-22,R-401A,R-401B,R-402B,R-407C ... optional, and dual voltage 110/220V function available. Refrigerant Recycling Machine,1HP, with oil and gas separator