It's really hard to go wrong with different sized metal tees so I'll tell you only that it is not . Worth $100 and wish I had paid less. It works well on most older cars, but it does not have appropriate threaded adapters for the Schrader valve pressure test fittings on many post 1993 European cars and probably many US cars. Judging by the picture, with so many parts in the kit, checking the fuel pressure isn't really going to be a headache @%#, but it's a nightmare of tiny adapters and hoses fitted in different combinations for different cars. What happens when a person is lost?
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