The Butts Cooling System Pressure Tester TBT2420 is a diagnostic equipment and tool designed to detect leaks in vehicle cooling systems. This pressure tester, manufactured by Butts, is specifically designed for testing the integrity of the cooling system with the manufacturer part number TBT2420. It is a valuable addition to any garage or workshop, providing mechanics with a reliable tool to ensure efficient and effective repairs. Item is virtually new, used maybe once or twice.