Danfoss scroll compressor, high efficiency, very low noise, outstanding reliability. SpecificationsPerformer compressor is a type of scoll compressors, can be used for R134a,R404A,R507 and R407C. contact us for any need. 1. Danfoss Performer is a type of scroll compressor. 2. They can be used for both 50 and 60Hz. 3. They are for R134a,R404A,R507 and R407C. 4.Capability: good