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R508B is a perfluorocarbon based refrigerant, used as a replacement for R13 and R503 in very low temperature applications

Product Information

  • Available from A‑Gas and wholesale partners.
  • Store cylinders in a cool, dry, well-ventilated area, out of direct sunlight
  • For available package sizes please contact A-Gas on 0800 992 427 or via the Contact Us form


Commercial Refrigeration

Industrial Refrigeration



*Medical freezers, environmental chambers

Product Features and Benefits

  • Substitute for R13 and R503 at very low temperatures (-400C to -1010C)
  • Azeotropic blend
  • PFC based refrigerant
  • Offers advantage over R23 including significantly lower discharge temperatures
  • Non-flammable, non-ozone depleting, safety classification of A1
  • Compressor to be charged with POE oil, contact the compressor manufacturer for more information

The information contained within this website is for guidance only, for further system specific advice please call A‑Gas directly.