... substitute Refrigerant gas R134a ,1,1,1,2-Tetrafluoroethane ,used in auto air condition,refrigerator,central air-condition.R-134a has ... ,refrigerators,cenrel air conditions,commercial refrigeration,and also been used in areas such as medicine,cosmetics,pesticide Physical Properties Quality Specification ... .29OdorNo strange stenchLiquid Density,g/cm31.207 Refrigerant Gas R134a for sale