The OEMTOOLS Radiator and Cap Test Kit tests pressure caps and cooling systems for leaks on a variety of domestic and import vehicles. The set features a hand pump and tester head with 12" hose and reads pressure in both psi and kPA. Set features 2 popular adapters for 32 mm ID cap systems in both the 9.5 mm and the 15 mm depths. Set also contains the adapter to tests the caps for these systems.