R-427A

For R-427A, replaces is R-22, verified against its source on 2026-08-11.

What the source says

R-22 Retrofit Blends R-404A R-407A R-407C R-407F R-417A R-417B R-421A R-421B R-422A R-422B R-422C R-422D R-424A R-427A R-428A R-434A R-438A R-507A

— epa.gov, retrieved 2026-08-11

Source

• epa.govhttps://www.epa.gov/sites/default/files/documents/Choosing_Right_R22_Retrofit.pdf

Last verified against source: 2026-08-11. Due for re-check by 2027-08-11. This page as Markdown · OKF bundle · full dataset as JSON.