This is the AirDog I FP-150-4G fuel system for the 1998.5-2004 VP44 and early CP3 Cummins. This system mounts to the frame rail using the supplied sandwich plate mounting system.  A 1/2" draw straw is used to pull fuel from the tank. The pressure side connects directly to the VP44 or CP3 injection pump, bypassing the factory fuel filter housing. The AirDog Air/Vapor return is sent back to the tank through a filler neck tee. This is a 150GPH (Gallon Per Hour) fuel system. Check out our installation manual for a list of parts that are included with this kit.