# HFC-R427A — HVAC refrigerant replacements: retrofit compatibility, safety class, GWP and lubricant For HFC-R427A, replaces is R-22; gwp is 2138; compatible lubricant is POE-32; listing status / notes is Discus supermarket racks only, verified against its source on 2026-08-11. - **Refrigerant:** HFC-R427A _(verified: appears in the quote below)_ - **Replaces:** R-22 _(verified: appears in the quote below)_ - **GWP:** 2138 _(verified: appears in the quote below)_ - **Compatible lubricant:** POE-32 _(verified: appears in the quote below)_ - **Listing status / notes:** Discus supermarket racks only _(verified: appears in the quote below)_ ## What the source says > HFC-R427A 2138 R-22 L,M POE-32 Discus supermarket racks only ## Source - https://webapps.copeland.com/online-product-information/Publication/LaunchPDF?Index=AEB&PDF=93-11 Last verified: 2026-08-11. Review by: 2027-08-11. Part of [HVAC refrigerant replacements: retrofit compatibility, safety class, GWP and lubricant](https://referencesource.org/hvac-component-refrigerant-compatibility/).