Freon MO59 was one of the earliest R-22 replacement refrigerants on the market and continues to be used effectively in some applications, such as AC conversions. Freon™ MO59 (R-417A) is a non-ozone-depleting HFC retrofit refrigerant blend, typically used in AC conversions to replace R-22 in direct expansion stationary air conditioning and medium-temperature refrigeration systems.

Applications
● Residential and commercial AC systems
● Medium-temperature commercial refrigeration, including: food service, supermarket display cases, and food storage and processing