... ,low noise,little vibration 2.Lowest price FN Series Compressor IntroductionFN series compressor refrigerant is R406a,R12,mainly used in refrigerators,freezers ... large refrigeration eauipment,the structure of closed crank-connecting rod,reciprocating piston type,and semi-direct suction method. Main Features1.High ... up performance low noise,little vibration Other photos Manufacturers selling compressor