R-438A (Mo99 Generic) Refrigerant, 25 Lb. Disposable Cylinder – R-22 Retrofit Replacement

The R-438A (MO99™ Generic) refrigerant is a retrofit solution designed to replace R-22 in existing air conditioning and refrigeration systems without requiring major equipment modifications. It is commonly used in HVAC conversions where older R-22 systems need an environmentally safer and more accessible refrigerant alternative.

This refrigerant closely matches the operating pressures and cooling performance of R-22, making it one of the most widely used “drop-in” retrofit options in the HVAC industry. It is compatible with mineral oil and alkylbenzene lubricants, which helps reduce or eliminate the need for a full system oil change during conversion.

R-438A is suitable for a wide range of applications, including commercial refrigeration, HVAC systems, and specialized cooling equipment such as freezers, ice machines, and cold storage units. It provides a cost-effective transition away from ozone-depleting R-22 systems while maintaining system efficiency.

Key Features

• 25 lb disposable cylinder of R-438A (MO99 equivalent)
• Designed as a retrofit replacement for R-22 systems
• No major equipment modification required
• Compatible with mineral oil (MO) and alkylbenzene (AB) lubricants
• Suitable for HVAC, refrigeration, and commercial cooling systems
• Works in low, medium, and high-temperature applications
• Commonly used in retail refrigeration, cold storage, and food service equipment
• Cost-effective alternative for legacy R-22 systems

Specifications

Summary

R-438A is a popular retrofit refrigerant used to extend the life of older R-22 HVAC systems. It provides similar performance with fewer system changes, making it a practical and economical solution for upgrading legacy cooling equipment.