The DVL 7 x 12 Double Wall Black Pipe Length is a component that is used in a typical venting installation. Designed for installation with minimum clearance to combustibles (6 to walls, 8 from top of horizontal run to ceiling).Designed for installation with minimum clearance to combustibles Stainless steel inner wall Double wall construction UL ListedADA Compliant: No Collection: DVL Finish: Black Fuel Type: Wood Inside Diameter: 7 Length: 12 Material: Galvanized Steel Pipe Class: Stove Pipe Pipe Shape: Round Style: Contemporary Modern Vent Construction: Double Wall Weight: 4