{"title":"R421a Refrigerant","description":"\u003ch4\u003e\u003cstrong\u003eR421A is a non-ozone-depleting, two-component hydrofluorocarbon (HFC) refrigerant designed as a drop-in replacement for R-22.\u003c\/strong\u003e\u003c\/h4\u003e\n\u003ch4\u003e\u003cstrong\u003eComposition and Properties\u003c\/strong\u003e\u003c\/h4\u003e\n\u003ch4\u003e\u003cstrong\u003eR421A consists of 58% R-125 and 42% R134a, making it a two-component blend with low temperature glide, which ensures consistent evaporator temperatures and efficient system performance \u003cspan\u003eIt has an \u003c\/span\u003eozone depletion potential (ODP) of 0\u003cspan\u003e and a \u003c\/span\u003eglobal warming potential (GWP) of 2,631\u003cspan\u003e, making it environmentally safer than R-22.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eThe refrigerant is ASHRAE A1 rated, meaning it is non-toxic and non-flammable.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eR-421A is designed to retrofit existing R-22 systems without requiring major modifications. 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