Dose does not contain a pressure plug. According to the instructions it's on, but it's not. I can't use it. ***UPDATE*** I picked up the missing connector at an auto parts store. I was going to have the hose installed and to make matters worse, it did NOT fit my car (Jeep Liberty 2007). The brass connectors were the wrong size. I had to return this and just bought a hose from an auto parts store.