Prestone AF1420 Anti-Freeze and Coolant Tester, Fluid: Et

Prestone Anti-Freeze Tester Hydrometer

This professional antifreeze and coolant tester easily checks the condition of antifreeze and coolant. It works for all ethylene glycol coolants, including GM Dex-Cool. The professional disc-type tester is accurate at all temperatures. It is simple to use and has a tough, shatter-resistant clear housing.

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