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Radiator Stop Leak, 11-oz.

Prestone

$3.49
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Prestone(TM) Radiator Stop Leak takes sealing performance to a higher level. Its unique combination of natural and synthetic components provides the ability to seal leaks up to 0.016" X 0.5". What makes this possible is the size, strength, and durability afforded by fibrous particles, the same materials in bulletproof vests. Prestone(TM) Radiator Stop Leak particles have been chosen to seal even large leaks without interfering with the flow through the radiator and heater core tubes. It also boosts corrosion inhibitors to protect against pitting and corrosion, which cause radiator leaks.