R-438A Refrigerant 25LB

R-438A Refrigerant – Versatile R-22 Replacement for AC and Refrigeration

R-438A, also known by its trade name MO99, is a hydrofluorocarbon (HFC) blend designed as a versatile and efficient replacement for R-22 in both air conditioning and refrigeration systems. It provides similar cooling performance with zero ozone depletion potential, making it a popular retrofit solution for residential, commercial, and industrial applications.

R-438A is compatible with existing system components and works with mineral oil, alkylbenzene, and POE lubricants—eliminating the need for an oil change in most systems. It performs well across a broad range of evaporator temperatures and is ideal for split systems, rooftop units, walk-in coolers, and low-temp refrigeration.

With reliable performance, easy installation, and strong environmental credentials, R-438A is a go-to option for HVAC professionals maintaining or upgrading legacy R-22 systems.

Brand & color of cylinder may vary.