Envirosafe Arctic air for R-1234YF, R1234, r1234yf Refrigerant Support, 4 cans and a gauge

Envirosafe CME55993 Universal Drying agent Colder air Longer life A/C Booster DO NOT use in ammonia systems DO NOT use in CO2 systems Gas propelled Installs the same way as refrigerant Cannot be added to a fully charged system 4 - 4oz cans and gauge