Quickly reveals external cooling system leaks. Detects internal engine leaks caused by blown head gaskets and/or cracked block or heads. Easily test entire cooling system, including radiator, heater core and radiator cap. Vacuum purge and refill kit to refill cooling system and eliminate air pockets. Kit includes: Hand Pressure pump with color coded 0-35psi gauge and push-button pressure relief valve, Temperature gauge, 3 chromed steel radiator adapters, 16 Anodized aluminum radiator adapters, 1 Universal radiator adapter, 2 Radiator Cap test adapters, 3 piece Vacuum purge and refill kit, Instructions, Storage and carrying case.