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Webdec 20, 2016 · in july 2016, the environmental protection agency (epa) authorized the sale and import of the refrigerant r458a under its significant new alternatives policy.
It is epa and ashrae approved for hvac and refrigeration applications. Readers interested in this topic may also find value in our analysis of Townhomes That Allow Petsabout, which provides a thorough examination of the key concepts discussed here.
