This DuraLiner 6 Chimney Relining Wall Pass Through efficiently helps venting of heating appliances while protecting masonry chimneys from the damaging effects of flue gas. Use to connect to a DuraLiner tee. Transitions DuraLiner through a masonry chimney and a combustible wall. Allows the connection of DuraBlack pipe when used with the appropriate adapter. DVL black pipe will connect directly to the Wall Pass Through.ADA Compliant: No Collection: DuraLiner Fuel Type: Coal, Gas, Oil, Pellet, Wood Height: 17 Material: Aluminized Steel Pipe Class: Rigid Liner Pipe Inside Diameter: 6 Pipe Shape: Round Style: Contemporary Modern UL Listed: Yes Vent Construction: Double Wall Weight: 15