Welzh 33 Piece Radiator Pressure And Cooling System Tester Allows easy testing for leakage in radiator system and quick change of coolant. Unit is suitable for domestic and commercial vehicles. Colour coded radiator test caps make it easy to choose the suitable test cap for the job. Special design of vacuum purge & refill tool connection fits nearly all type of radiator opening. Test Range 0-35 psi (0-2.5 bar). Universal Radiator Coolant Pressure Test Included The following adapters for the following vehicles are Included and Compatible with: Mercedes Benz, GM, Jeep, Peugeot, Subaru, Chrysler, Acura, Mitsubishi, Nissan, Mazda, Toyota, Infiniti, Geo, Suzuki, Isuzu, Honda, Lexus, Volvo, Saab, Citroen, Renault, Fiat, Alfa, Mini Cooper, VW, BMW, Ford, Opel, Porsche, Audi, etc.rsche, Audi, etc.