Features and Benefits:

• Large professional-size (16 1/4-inch)
• Protection scale is printed in both Celsius and Fahrenheit
• Beyond 70% anti-freeze, cooling and corrosion effectiveness is reduced
• Easy to read discs are magnified by convex design of the clear SAN plastic barrel
• One-piece bulb and neoprene dip tube

Easy to read disc are magnified by convex design of the clear SAN plastic barrel Professional disc type tester is accurate at all temperatures Special 6th disc shows overprotection and loss of cooling protection One-piece bulb and neoprene dip tube.