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R455A (Solstice L40X)

Solstice L40X (R455A) is a zeotropic blend, low flammability (A2L) refrigerant designed to replace R404A in newly developed low, medium and high temperature systems. With a GWP value of 148, it is recommended as a long-term alternative to other refrigerants that complies with the F-Gas regulation.

Packing 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



*Condenser units, waterloop systems for discounters and smaller supermarkets, mobile units (low and medium temperature range), monobloc refrigeration systems, gastronomy and canteen kitchens, low temperature cascade systems


Product Features & Benefits

  • GWP: 148
  • High efficiency, high critical temperature, low critical pressure
  • Very similar capacity to R404A
  • Low discharge gas temperature, comparable to R404A/R507
  • 30 percent lower mass flow compared to R404A/R507 - allows application in more compact systems
  • Miscible with polyolester lubricants
  • Non-toxic and mildly flammable (A2L)
  • The information contained within this website is for guidance only - for further system specific advice please contact us directly