Check the listing for details. Arctic Air for R22 Systems | EnviroSafe AC Support | 12 can case. Condition: New. Listed at 172.00 USD. 1 Can, Aerosol CanNote: This is not a refrigerant. It features a 134a top on the can, requiring the correct tap/hose for use.Enhanced Performance: A combination of 2 Enviro-Safe products for maximum cooling performance.Moisture Removal: Helps eliminate moisture in the A/C system, preventing corrosion and freezing.Friction Reduction: Reduces friction in the system, resulting in colder air duct temperatures in most cases.Compatibility: Compatible with any automotive refrigerant except ammonia and CO2.Additional Features:Acts as a drying agent.Promotes colder air.Enhances system longevity.Functions as an A/C booster.Usage Warnings:Not suitable for use in ammonia systems.Not suitable for use in CO2 systems.Cannot be shipped to Alaska or Hawaii or exported to foreign countries except in pallet quantities.Installation Details:Gas propelled.Installs similarly to refrigerant.Cannot be added to a fully charged system.