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R454A (XL40)

R454A (Opteon™ XL40) is a mildly flammable, low-GWP refrigerant designed to replace R404A in new equipment designs. R454A offers the optimal balance of properties to replace R404A in positive displacement, direct expansion low and medium temperature commercial and industrial applications. It offers improved energy performance and higher cooling capacities, making it easy and cost effective to apply in new equipment without major modifications.

Packaging Information







  • Available from A‑Gas wholesale partners - find a supplier
  • A‑Gas product cylinders are fitted with a Residual Pressure Device (RPD) to ensure used refrigerant or any other substance cannot be reintroduced into a cylinder
  • Store cylinders in a cool, dry, well-ventilated area, out of direct sunlight
  • A‑Gas operates a returnable cylinder fleet - empty cylinders are to be returned to an A‑Gas wholesale partner
  • For alternative or larger package sizes please contact A-Gas on 01275376600 or via the Contact Us form


Commercial Refrigeration

Product Features and Benefits

  • GWP: 238
  • Improved capacity and efficiency compared to R404A
  • Very close match to R404A – easily convertible from current design with minimal changes
  • Non-toxic and mildly flammable (A2L)
  • Miscible with polyolester lubricants
  • The information contained within this website is for guidance only - for further system-specific advice please contact us directly