Use to maintain a weather tight resistant seal between the pipe and the flashing.ADA Compliant: No Depth: 12 Finish: Galvanized Fuel Type: Gas, Liquid Propane Material: Aluminum, Galvanized Steel Pipe Class: Direct Vent Pipe Inside Diameter: 5 x 8 Pipe Shape: Round Style: Contemporary Modern UL Listed: Yes Vent Construction: Double Wall Weight: 4 Width: 12