The Arctic Freeze synthetic refrigerant kit has a specially designed formula featuring Cool Boost technology that helps a vehicle's A/C produce colder air. The approximately 12 oz. of R-134a and 2 oz. of additives are used to recharge a vehicle's A/C system, seal common leaks in rubber components, and help extend the A/C system's life by eliminating acid and moisture buildup. This A/C recharge kit comes with a reusable push button charging hose. Product Features:Contains approximately 12 oz. of R-134a and 2 oz. of additivesCool Boost technology delivers colder airContains leak sealer to seal common A/C leaks in rubber hoses, gaskets, and O-ringsContains moisture and acid buildup eliminator which helps extend A/C system lifeReusable recharge hose with push button dispenser included for an all-in-one solutionReusable trigger dispenser with gauge and temperature dial indicator