Zerex Antifreeze Coolant – 1 Gallon. Experience unsurpassed freeze protection and anti-boil performance with our Zerex Antifreeze Coolant. Why Choose Zerex Antifreeze Coolant?. With its patented carboxylate solution, it’s specially formulated to combat corrosion, leaking, and deposits—the four main causes of cooling system failure that can lead to significant engine issues.
