R-438A Refrigerant, 25 lb Cylinder, A1, Virgin, MO99 R438A-0025

The R-438A Refrigerant (R438A-0025) is an A1 classified HFC blend refrigerant supplied in a 25 lb cylinder and marketed as MO99 for use in approved retrofit applications. This virgin refrigerant is positioned as a replacement option for R-22 in certain existing air conditioning and refrigeration systems when retrofit procedures are properly evaluated and permitted. It is intended for servicing equipment originally designed for R-22 where OEM guidance allows its use. Proper job-fit verification requires confirming manufacturer retrofit approval, system condition, lubricant compatibility, and compliance with applicable refrigerant regulations prior to installation.