Includes: three 12 oz. cans of 134a refrigerant for a full system charge one 3 oz. can of retrofit oil with conversion additives Stop Leak and O-ring Conditioner. Patented R-134a recharge hose with quick-connect and can tap. R-134a high- and low-side retrofit fittings and caps. A third retrofit fitting for pre-76 vehicles and late model imports. EPA approved label. Complete bi-lingual instructions.