Thexton Cold-Chek® Professional Anti-Freeze Tester

• Disc-Type anit-freeze tester
• Large professional sized tester (16-1/4” long). Tests coolant hot or cold, including Dex-Cool®. Easy to read discs. Celsius and Fahrenheit scales.
• Special feature is the “6th Disc” which shows overprotection
• One-piece bulb and neoprene dip tube