Use this Professional Fuel Pressure Tester Kit to diagnose drivability problems caused by poor fuel pressure . 2-1/2" gauge with 0-100 psi/0-700 kPa scales for accurate measurements. 40-inch gauge hose for ease of reaching any test point . Pressure relief button and 6' hose for safely disposing of gasoline and repeating tests as well as adapters to fit majority of domestic and import applications including GM TBI adapter. Handy tool pouch and manual with step-by-step test procedures included Tester works on all makes and models with schrader valve test port on fuel rail, Asian, European and domestic makes with "banjo bolt" connection (most popular, 12mm x 1.25 banjo included, other bolts available from Actron), All makes and models with detachable rubber hose connection at fuel rail, fuel line or fuel filter, GM TBI with threaded connection at fuel filter or throttle body. Features gauge boot to protect gauge and vehicle finish. Kit Includes: GM/Chrysler Test Port Adapter. Ford Test Port Adapter. GM TBI Test Adapter. M12 x 1.25 Banjo Bolt Adapter. Dual Manifold Test Adapter