GM TBI Fuel Pressure Tester

Great quality, connections are leak free and sealed correctly, fittings look to be brass. Seems to be accurate. TBI adapter works like a charm, it features a schrader valve which will automatically seal once the hose is disconnected, also the middle section which the schrader valve is located rotates for easy positioning, even with the adapter screwed in tightly to the TBI. You can use a A/C or fuel line dust cap on the adapter if you wish to leave it installed, and you can also use the gauge and hose by itself to measure standard fuel rails on other vehicles. Short hose length, however good enough to feed out the back side of hood and watch pressure as you drive, hose is thick however so may prove to be difficult to feed through car hoods with small gaps, trucks easily fit through if you don't use the primary hood latch and remove the weather stripping.