R-421A Refrigerant (HFC Blend)
R-421A Refrigerant – Simplified R-22 Retrofit
R-421A refrigerant is an HFC blend created for straightforward R-22 retrofits. It is often marketed as a “no oil change” replacement, making it popular with contractors seeking fast solutions for servicing older equipment.
Applications
- Residential and commercial A/C retrofits
- Packaged rooftop systems
- Some refrigeration systems originally using R-22
Benefits
- No lubricant change in many applications
- Zero ozone depletion potential
- Available in 25 lb cylinders