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Is R-22 refrigerant still being made today and when will it no longer be produced Additionally what is the substitute refrigerant for older units that use R-22 now?

  HCFC-22 (also called R-22) and HCFC-142b are the next two HCFCs that the United States will phase out. The schedule to phase out HCFCs is: January 1, 2010   Ban on p (MORE)