R-438A (MO99) Refrigerant – 25 lb Cylinder

100% Virgin, Premium-Grade R-22 Replacement for Compatible Legacy Systems

Keep compatible R-22 refrigeration and air-conditioning equipment in service with this 25 lb factory-sealed cylinder of 100% virgin R-438A refrigerant, commonly known in the field as MO99. Designed as a lower-GWP alternative for compatible R-22 applications, R-438A provides dependable performance while helping extend the service life of existing equipment.

Key Benefits

• Proven R-22 Replacement: R-438A is designed for use as an alternative to R-22 in compatible refrigeration and air-conditioning applications.

• Minimal System Modifications: Depending on the equipment and application, conversion to R-438A may require minimal system modifications and may allow continued use of existing lubricants. Always follow manufacturer requirements.

• Reliable Cooling Performance: Designed to provide dependable operation across a range of compatible residential and commercial HVAC/R applications.

• AHRI-700 Certified: Premium-grade refrigerant meeting applicable AHRI-700 specification requirements for quality and purity.

• 100% Virgin Refrigerant: Factory-sealed cylinder containing virgin R-438A refrigerant.

• 25 lb Shop-Ready Size: Convenient volume for qualified technicians performing system conversions, recharges, and ongoing service work.

Safety & Compatibility — Important

A1 Classification: R-438A is classified as non-flammable and lower toxicity (A1) under the applicable refrigerant safety classification system.

Use Only in Compatible Equipment: Confirm that the specific system and application are approved for R-438A before charging. Follow the refrigerant manufacturer's recommendations and the equipment manufacturer's service procedures.

Regulatory Compliance: R-438A is a fluorinated refrigerant and may be subject to phasedown, sales, handling, recovery, certification, or reporting requirements depending on your jurisdiction. Verify applicable regulations before purchasing or using the product.

For Professional HVAC/R Use: Refrigerant charging, recovery, conversion, and servicing should be performed by appropriately trained and qualified technicians using approved equipment and procedures.