R-507A

HFC blend

Under annual quota

GWP: 3,985
ODP: 0
Class: A1
Family: HFC
Boiling: -47.1 °C

Composition: azeotropic blend: R-125 / R-143a

Azeotropic, so it has no temperature glide. Used alongside R-404A in low-temperature refrigeration and has a similarly very high GWP.

What this means for you

This refrigerant is subject to an annual import quota that shrinks on a set schedule. Equipment may continue to operate, but topping it up will become more expensive over the years.

Low-temperature refrigeration.

Handling

Class A1. Low toxicity, non-flammable. The widest application, without special restrictions.

What replaces it

R-448A

blend

GWP 1,387 · A1

GWP lower by 65%

Low-temperature refrigeration

Replacement must be carried out by a licensed technician. Class A2L and A3 refrigerants are flammable and require specific installation conditions.

Where to go next

What the law requires Find a licensed technician

Data source: Manual §1.3.2, §2.5.1, §2.5.2