Feature●Practical Function: This coolant pressure tester will test fuel pump pressure and all vacuum operated devices. The gauge seems pretty well made.●Good Helper: engine vacuum gauge can Diagnose leaking valves, incorrect timing, leaky intake manifolds and clogged mufflers.●Advantage: Heavy gauge with protective rubber case to prevent scratches. All the tools are well organized in a blow molded case for easy transportation, simple storage, and quick identification. It can be used to measure pressure and vacuum.●Easy To Read: Large 3.5-inch diameter, double scale, easy to read. 50cm long rubber hose with 14mm / 17mm manifold adapter. as part of your tool kit this works well and gave you the instant accurate readings for you to fault find on a vehicle. came with adapters to fit more applications. And for you it can also used to eliminate faults on vehicle with limited access to engine components. this will save a lot of time for you.●Buy with Confidence: Please check pictures and specifications for compatibility. We have a professional service team. If you have any problems, fell free to contact us. Our team will help you solve the problem as soon as possible.Description