Icon representing HFC R442A gas cylinder, for use on the web.

R442A (RS-50) R442A, also known as RS-50, is an HFC blend that is suitable for use in low and medium temperature refrigeration applications such as those used in commercial refrigeration. It can be used as a retrofit replacement for R22, R404A or R507 systems, including commercial and transport refrigeration. R442A has a low GWP, approximately half that of R404A or R507A, offering substantial environmental benefit.

Temperature Range

Retrofit Information

Replacement for:R404A, R507A
Retrofit gas or design for new equipment?Suitable as a "drop-in" retrofit replacement for R404A. Can be used as a retrofit in some R22 systems with an oil change.
Other alternatives / replacements:R407A, R407F
Compatible lubricants:POE

Environmental Impact

Ozone Depletion Potential (ODP)0
Ozone Depletion Potential (Rating) Zero Ozone Depletion Potential
Global Warming Potential (GWP)1888
Global Warming Potential (Rating) Icon representing medium Global Warming Potential, illustrating the environmental impact of gases used within the refrigeration and air conditioning sector. For use on the web.

Safety Information

ASHRAE Safety Group (2013)A1
ASHRAE FlammabilityNo
ASHRAE ToxicityNo

Supply Modes & Package Specifications

We offer this refrigerant gas in a range of package sizes to suit a wide range of applications. Typically, this will include both cylinders and drum tanks.

Product codeContents (kg)CO2e (kg)Valve type
Please contact your local Linde sales office for details.

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A zero ODP, low GWP alternative to CFCs, HCFCs & HFCs

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