Includes: Three 15 oz. cans, each containing 12 oz. of 134a refrigerant and 3 oz. of PAG oil with retrofit additives, Stop Leak, and O-ring conditioner. Patented/patent pending R-134a recharge hose with in-line gauge to check pressure as you refill the air conditioner system. R-134a high and low side retrofit fittings and caps. A third retrofit fitting for pre-76 vehicles and late mode imports. EPA approved label. Includes complete bilingual instructions.