R502, 5 Lbs., Refrigerant Professional Check & Charge-It Kit

R502, 5 Lbs., Refrigerant Professional Check & Charge-It Kit R502, R-502, Refrigerant 502, New, Virgin,  Net Wt. 5 lbs. Top hose connection is 1/4" male flare with tank on/off valve. R502, R-502, Refrigerant 502, New, Virgin, Net Wt. 5  Lbs. Top hose connection is fitting is 1/4" male flare. Developed for use in low temperature refrigeration (the evaporator pressure stays out of vacuum down to -40°F). R-502 offers lower discharge temperature and improved capacity compared to R-22. Commercial refrigeration systems can perform low temperature refrigeration in a single stage with relatively inexpensive compressors. Since the phase-out of R-502 in 1995, service quantities are limited. An EPA certificate is required to purchase R502  Refrigerant  "OR" a statement saying you are  purchasing this for "Resale Only".  The "Resale Only" statement can be in the form of an e-mail.