Duravent 4021126 4 x 84 in. Aluminum & Galvanized Steel Vent Pipe Kit 4BVKNT

DuraVent’s Vertical Unit Heater Kit is designed for category 3 applications. It is double-wall air insulated for superior performance. Easy to Install Double-wall construction Meets USA fuel gas code standards Tight lock connection with just a twist 1″ clearance to combustibles