R-437A

For R-437A, trade name(s) is KDD6, ISCEON MO49 Plus; retrofit / new is R/N; ashrae safety class is A1; gwp is 1,810; listing status / notes is Acceptable, verified against its source on 2026-08-11.

Refrigerant: R-437A verified
Trade name(s): KDD6, ISCEON MO49 Plus verified
Retrofit / new: R/N verified
ASHRAE safety class: A1 verified
GWP: 1,810 verified
Listing status / notes: Acceptable verified

Sourceepa.gov

Verified2026-08-11

Review by2027-08-11

DatasetHVAC refrigerant replacements: retrofit compatibility, safety class, GWP and lubricant

What the source says

R-437A | KDD6, ISCEON MO49 Plus | R/N | 0 | 1,810 | A1 | <https://www.govinfo.gov/content/pkg/FR-2009-01-02/pdf/E8-31225.pdf> January 2, 2009 (pdf) (173 KB); <https://www.govinfo.gov/content/pkg/FR-2010-06-16/pdf/2010-14510.pdf> June 16, 2010 (pdf) (229 KB) | Acceptable |

— epa.gov, retrieved 2026-08-11

Source

epa.govhttps://epa.gov/snap/substitutes-residential-and-light-commercial-air-conditioning-and-heat-pumps

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.