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R-454B Refrigerant (HFO, A2L)
R-454B Refrigerant – Low-GWP HFO (A2L)
R-454B is a next-generation HFO blend designed as a lower-GWP alternative to R-410A in new air conditioning and heat pump equipment. It offers comparable capacity and efficiency while helping meet evolving environmental regulations. R-454B is classified as A2L (mildly flammable); always follow manufacturer guidance and local codes.
Common Applications
- New residential and light-commercial A/C and heat pumps (OEM-specified equipment)
- Chillers and packaged systems engineered for A2L refrigerants
Cylinder Sizes & Packaging
- 20 lb cylinder (typical service size)
Key Advantages
- Lower GWP compared to R-410A
- High performance in systems designed for A2L refrigerants
- OEM support in many next-gen A/C and heat-pump platforms
Important Notes
- Not a drop-in for R-410A equipment. Use only in systems specifically designed and rated for R-454B.
- Handling & shipping: May require hazmat procedures; follow label, SDS, and carrier rules.
- Certification: Certain purchases may require EPA Section 608 credentials; verify federal, state, and local requirements.
Comparing options? See R-410A and R-32, or browse our HFO Refrigerants (Low GWP).
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