Recharge your auto s cooling system with Super Tech R-134A Refrigerant. For R-134a automotive A/C systems only do not mix with Refrigerant 12. If you re using an automotive air-conditioning system that requires R-134a refrigerant it s important to note that the newer self-sealing valve cans are the only ones available. To use these cans with older piercing-style recharge hoses or can tap valves you ll need to purchase an adaptor. It s crucial to ensure that you re using the proper equipment to avoid any potential issues. Recharge that not-as-cool cooling system with Super Tech R-134A Refrigerant. This item is ineligible for sale or shipping to WA/VT/CA. This item contains R-134a