The DirectVent Pro 5 x 8 Inner Diameter Galvanized Wall Strap is a component that is used in a typical venting installation. The wall strap is used to support vent pipe.Use to support vent pipe Provides 1 clearance Recommend installing Wall Straps at 4-foot intervals on vertical runsADA Compliant: No Depth: 9 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: 8