Meant for R-134a cars, it also has a leak sealer and additive than can help stop small leaks in hoses, gaskets and o-rings. It replaces not just the AC refrigerant lost, but the oil that can leak ...

Note: Some states impose restrictions on the sale of R-134a refrigerant ... and the refrigerant contained a seal conditioner additive. But you can use any brand for a car ac recharge.