# HFC R-438A — HVAC refrigerant replacements: retrofit compatibility, safety class, GWP and lubricant

For HFC R-438A, replaces is R-22; trade name(s) is Freon MO99; gwp is 2265; compatible lubricant is POE-32; listing status / notes is Discus supermarket racks only, verified against its source on 2026-08-11.

- **Refrigerant:** HFC R-438A _(verified: appears in the quote below)_
- **Replaces:** R-22 _(verified: appears in the quote below)_
- **Trade name(s):** Freon MO99 _(verified: appears in the quote below)_
- **GWP:** 2265 _(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 R-438A 2265 R-22 L,M POE-32 MIN AB Discus supermarket racks only; Freon MO99

## 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/).