The DirectVent Pro 4 x 6-5 8 Inner Diameter Galvanized Elbow Strap is a component that is used in a typical venting installation. The galvanized elbow strap is used for supporting vent pipe between offsets.Depth: 6-5 8 Finish: Galvanized Fuel Type: Gas, Liquid Propane Height: 17 Material: Aluminum, Galvanized Steel Pipe Class: Direct Vent Pipe Inside Diameter: 4 x 6-5 8 Pipe Shape: Round Style: Contemporary Modern UL Listed: Yes Vent Construction: Double Wall Weight: 5 Width: 6-5 8