The R134A-30 refrigerant is a popular, ecologically friendly refrigerant used in HVAC systems due to its great cooling capabilities. Compared to older refrigerants, R134A is preferred since it has less of an adverse effect on the environment and doesn't deplete the ozone layer. This 30-pound R134A cylinder offers enough supply for a range of HVAC uses, guaranteeing reliable and effective cooling. Using a vapor compression cycle, R134A changes from a liquid to a gas phase inside the system's evaporator coils, absorbing heat from the surrounding air. The refrigerant evaporation brought on by this heat absorption efficiently lowers the ambient air temperature.