EZ Chill R-134a Refrigerant & Oil (18 ounces) (CA Compliant) This EZ Chill refrigerant kit has a specially designed formula of R-134a and additives. The approximately 15 oz. of R-134a and 3 oz. of additives are used to recharge a vehicle s A/C system and seal common leaks in the A/C system s rubber components. This A/C recharge kit comes with a reusable charging hose and gauge. This item contains R-134a.