The DVL 6 Double Wall Adapter Damper Section is a component that is used in a typical venting installation. Connects DVL pipe to the appliance flue outlet. Use as a stove adapter. The damper is optional.Fuel Type: Wood Material: 26 Gauge Aluminized Steel Pipe Class: Stove Pipe Pipe Inside Diameter: 6 Pipe Shape: Round Style: Contemporary Modern UL Listed: Yes Vent Construction: Double Wall Weight: 2