Prestone AS145 Stop Leak Repair for Radiators, Heater Cores, and Hoses, 11 oz, 1 Pack
- Patented formula quickly stops leaks in radiators, water pumps, and heater cores.
- Boosts corrosion inhibitors to protect against pitting and corrosion, which cause radiator leaks.
- Combination of natural and synthetic components provides the ability to seal leaks up to 0.020" x 0.5".
- Seals even large leaks without interfering with the flow through the radiator or heater core.
- Stops the leak as well as the corrosive condition that causes it.