R-22 Replacement Refrigerants
Looking for a replacement for R-22 refrigerant? While R-22 has been phased out, several retrofit blends provide reliable performance in older HVAC systems. Explore the best alternatives below to keep legacy equipment running.
What Can Replace R-22 Refrigerant?
R-22 refrigerant has been one of the most widely used HCFC blends in the HVAC industry, but due to EPA regulations it is no longer produced. For contractors and facility managers servicing older air conditioning and refrigeration equipment, the following refrigerants are the most common R-22 replacements:
- R-407C – A close performance match to R-22, widely used in residential A/C retrofits. Requires a switch to POE oil.
- R-422B – Retrofit blend often chosen for its ability to work with existing mineral oil in many systems.
- R-438A – Versatile blend suitable for both air conditioning and refrigeration applications.
- R-421A – Retrofit option with low discharge temperatures, helping to extend compressor life.
Future Alternatives
For new HVAC systems, manufacturers are moving toward low-GWP refrigerants such as R-32 and R-454B. These refrigerants are not drop-in replacements for R-22, but they are widely used in new equipment designs.
R-22 Replacement Options (Quick Chart)
| Refrigerant | Direct R-22 Retrofit | Oil Change Required | Flammability | Notes |
|---|---|---|---|---|
| R-422D | Yes | No | A1 (Non-flammable) | Some capacity loss; often used where oil change isn’t practical. |
| R-438A | Yes | No (often works with existing oil) | A1 (Non-flammable) | One of the closest matches to R-22 for many retrofit applications. |
| R-407C | Yes (with modifications) | Yes (POE required) | A1 (Non-flammable) | Temperature glide; best when doing a more complete retrofit. |
| R-32 | No | Yes (POE required) | A2L (Mildly flammable) | Higher pressure; generally for new equipment designed for R-32. |
Bottom Line
- Best “drop-in” style R-22 replacement: R-438A
- Good option when an oil change isn’t practical: R-422D
- Best choice when doing a full retrofit: R-407C
- Not recommended for retrofitting R-22 systems: R-32 (typically for new equipment)
Note: Always follow OEM guidance and local code requirements. Actual results can vary by application and system condition.
Why Buy From AAA Refrigerant?
- EPA- and DOT-compliant cylinders, factory sealed for safety.
- Nationwide Free Shipping with 1-3 day shipping on most orders.
- Over 15 years of HVAC refrigerant supply experience.
- Competitive pricing and discounts on pallet quantities.
AAA Refrigerant makes it easy to find and order the right R-22 replacement refrigerant for your equipment. Click any link above to view current pricing and availability.