• Professional disc-type 16 1/4" tester is accurate at all temperatures.

• Tests coolant, hot or cold, including Dex-Cool®.

• Easy to read discs are magnified by convex design of the clear SAN plastic barrel.

• Celsius and Fahrenheit scales.

• Special feature is the “6th disc” which shows overprotection and a loss of cooling efficiency.

• Beyond 70% anti-freeze, cooling & corrosion effectiveness is reduced.

• One-piece bulb and neoprene dip tube.

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