Envirosafe Arctic Air for R1234yf Systems, 3 Cans and Universal Brass Charging Gauge, R1234, R1234yf

Universal fit for newer vehicles 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. 4oz cans with Gauge