Sealey AK4120 Ethylene Glycol Antifreeze Tester Disc Type Checks condition of coolant antifreeze, hot or cold. Freeze protection level is indicated by the number of the six large coloured discs which float in the sample. Easy-to-read temperature table on the virtually unbreakable plastic body. Checks condition of coolant antifreeze, hot or cold Protection level is indicated by the number of discs floating in the sample Easy-to-read temperature table Tough, virtually unbreakable, plastic body Model No AK4120
