DuraVent DuraVent Aluminum Gas Vent Roof Support with 4" Inner Diameter

Round Gas Vent Collection Aluminum Gas Vent Roof Support with 4 Inch Inner DiameterThis Aluminum Gas Vent Roof Support with 4 Inch Inner Diameter from the Round Gas Vent series is a Type B gas component and consists of the duralock system for a tight seal. Use to support Type B gas vent pipe at roof level. Can be used when DuraConnect II is installed in attic space.Features:Fuel Type: Gas, Liquid PropaneInner Diameter: 4"Width: 15.75"Height: 1"Double Wall ConstructionUL ListedDuraVent Type B Gas Vent is ...