Prestone® Antifreeze/Coolant Tester is a professional do-it-yourself tester that easily tests for anti-freeze/anti-boil protection. It is important to maintain your antifreeze/coolant at the proper concentration to provide good corrosion protection as well as prevent freeze-ups and boil-overs. This tester provides a quick and easy method to safely collect a sample and measure coolant concentration. It also allows a visual inspection of the antifreeze while you test it. This is a low-cost way to check the condition of the antifreeze/coolant in your vehicle.

• • Do-it-yourself test
• • Allows inspection for rust and sediment
• • Tap to dislodge air bubbles, pointer shows degree of protection
• • works with all ethylene glycol coolants
• • Easy to use
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