Pro-Set Working Man series refrigerant recovery machine.Fastest, Smallest, Lightest, Best looking and most reliable heavy duty recovery machine in the world.Revolutionary 'vacuum pump' style design.Designed and Manufactured in the USA.TR21 Specifications: Compressor Type: 2 Cylinder Oil-less Reciprocating Compressor Dimensions: 15cm (6') Wide x 30cm (12') Long x 23cm (9') High Weight: 24.5 lb. Operating Temperature Range: 0-¦C (32-¦F) to 49-¦C (120-¦F) Power Source: 115 V 50/60 Hz Power Consumption: 850 W Filtration: Cleanable 100 - mesh screen integrated into Suction Port Overload Protection: Motor Thermally Protected High Pressure Shut-Off: 550 PSIG Refrigerants: R-12, R-134a, R-401C, R-406A, R-500, R-401A, R-409A, R-401B, R-412A, R-411A, R-407D, R-22, R-411B, R-502, R-407C, R-402B, R408A, R-509, R-407A, R-404A, R-402A, R-507, R-407B, R-410A