Checks for Worn or Defective Parts in Fuel Pumps & Leaks in Vacuum Systems Ideal for mechanical fuel pump testing Easily detects leaks in vacuum systems Cushioned Positive & Negative gauge with protective cushioned shell Easy use adaptors & fittings Extra-long hose to reach deep into the engine 90mm (3.5”) colour coded gauge 450mm heavy duty hose 14 & 18mm manifold adaptor 5 universal adaptors