The DuraTech 8 Class-A Standard Tee with Cap from the DuraTech Series The chimney pipe tee with cap is used for through-the-wall installations. Includes removable Tee Cap for easy chimney cleaning or inspection. Wall Straps, a Wall Thimble, and an Adjustable Tee Support Bracket must be installed with the Tee as directed.ADA Compliant: No Collection: DuraTech Finish: Stainless Steel Fuel Type: Coal, Gas, Oil, Wood Material: Galvanized Steel Pipe Class: Class A Pipe Inside Diameter: 8 Pipe Shape: Round Style: Functional UL Listed: Yes Vent Construction: Double Wall Weight: 2.8