Opteon™ XP44 (R-452A) is a non-ozone depleting, low global warming potential (GWP) hydrofluoro-olefin (HFO) based refrigerant replacement for R-404A/R-507 in new equipment and retrofit of existing systems. Opteon™ XP44 offers a near-match to the compressor discharge temperature and mass flow rate of R-404A/R-507, eliminating the need for TXV adjustments.