DuraVent DuraVent 4" Inner Diameter DirectVent Pro Direct Vent Pipe - Double Wall - Storm Collar

4" x 6-5/8" DirectVent Pro Galvanized Storm CollarThe DirectVent Pro 4" Inner Diameter Galvanized Storm Collar is a component that is used in a typical venting installation. The storm collar is used to maintain a weather tight resistant seal between the pipe and the flashing.Features:Maintain a Weather Tight Resistant Seal Between Pipe and FlashingInner Diameter: 4"Outside Diameter: 6-5/8"DirectVent Pro features tight inner connections for superb performance, with no gaskets or sealants required (unless ...