Refrigerant R402a, HP80
R402A (also known as HP80) is a zeotropic HCFC blend of R-22, R-125, and propane (R-290) designed as a retrofit replacement for R-502 in low- and medium-temperature commercial refrigeration. It offers similar capacity, allows for the continued use of mineral oil in many cases, and has a lower GWP than R-
502.