... ,R404A,R407c,R22 possible 2.High-quality ,high-efficiency Beifeng semi-hermetic compressor is suitable for refrigerants, ... such as R134a,R404A,R407c,and R22,etc.with Two stages compressorUsability:The same model compressors ... : Motor highly efficient: Best control gap.high quality and low energy consumption with inproved refrigerating capacity ...