PHOENIX — The Environmental Protection Agency has not yet made a final determination on the amount of R-22 refrigerant that manufacturers can produce and import for 2012 through 2014, an EPA representative said. R-22, which is being phased out by the EPA, still constitutes a significant percentage of the refrigerant used by retailers in their stores, though many are working on replacing it with acceptable alternatives. Restrictions on the availability of R-22 have driven up its ...

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