Refrigerant R134a 1,1,1,2-Tetrafluroethane, HFC-134A Replacement for ... :99.8% min. ARI-700 CE DOT cylinder Refrigerant R134a is an HFC refrigerant replacement for R-12. It is the global ... -12 mobile air conditioning systems Medium- and high-temperature refrigeration system:stationary commercial refrigerationchiller equipmenthome appliancesRetrofit existing R-12 refrigeration and ...