The Harbor Freight Maddox Cooling System Test and Refill Kit, No. 64985, uses shop air to easily bleed, purge, and test for cooling system leaks. The universal-fit Cooling System Test and Refill Kit allows technicians to easily test and refill automotive cooling systems. It checks for leaks when under a vacuum and eliminates airlocks in vehicle cooling systems. The kit comes with six adapters for most cars and light vehicles. It also includes a sturdy blow molded case to keep components organized.
