ChemoursOpteon YF refrigerant cools like HFC-134a in mobile AC systems but has a much lower global warming potential (GWP) and zero ozone depletion potential. Offering the optimum balance of cooling performance and environmental properties, Opteon YF meets global regulations for lower GWP refrigerants. Available in 12-oz./28-oz. cans, and 10lb/25lb cylinders, it's ideal for shops that perform high-volume AC work.