24 May R-134a vs R-1234yf Car Air Conditioning Fittings
R-134a vs R-1234yf Car Air Conditioning Fittings: Why They’re Not Interchangeable R-134a vs R-1234yf Car Air Conditioning Fittings. Your car air conditioning system keeps you cool by circulating refrigerant that absorbs cabin heat and releases it outside. For decades, R-134a was the industry standard—zero ozone-depletion, non-flammable,...