The Intermediate 1.5-2HP System Hose Connection Package includes: Four 3" - 6" diameter Band Clamps Two 5" diameter Blastgate Adapters One 5" diameter End Cap Two 5" Large Rad. 90 Adjustable Elbows Two 5" diameter Aluminum Blastgates Twenty feet of 5" Diameter Flex Hose One 5" diameter by 60" Long 26 Ga. Pipe One 7" diameter by 60" Long 26 Ga. Pipe Four 5" Quick Connect Female Two 5" Quick Connect Male Three 5" to 4" Reducers One 5x5x5 45 Deg Wye Joint One 7x5x5 45 Deg Wye Joint Follow all applicable Federal, State, Local and NFPA codes when installing.