Refrigerant R427a
Forane® 427A (R427A) is a zeotropic HFC blend ( R - 32 / R - 125 / R -143a/R-134a) designed as a direct, high-performance retrofit for R-22 in AC, heat pumps, and refrigeration. It offers zero ozone depletion, high compatibility with mineral oil, and similar operating pressures/capacities to R-22, making it a popular "easy"
replacement.