Expand the versatility of standard cooling system pressure testers by adding the Mityvac 04505 Universal Adapter to your toolbox. This adapter replaces numerous special, custom manufactured radiator and expansion tank adapters required by other brands of pressure testers, saving you time, money, and space. Simply attach the radiator adapter from your standard kit to the inlet side of our universal adapter, to create a pressure tester compatible with the majority of cars, trucks and SUVs. The 04505 is easy to service and requires no inflation or conditioning.