Upgrade your AirDog® Fuel System with the Fuel Pressure Tee! This new item offers more reliable fuel pressure readings. The fuel pressure tee allows the user to install a fuel pressure sensor right at the high pressure fuel pump. The push lock style fitting measures a half inch on the inside diameter with a 1/8th NPT port made for installing the fuel pressure sensor. Moving the installation closer to the engine ensures that you are getting the most accurate pressure reading for your diesel pick-up truck.