The DuraBlack 6" x 48" Single Wall Black Pipe Length is a component that is used in a typical venting installation. Use for a single-wall connector pipe. Requires 18" clearance to combustibles. Features: Type: Pipe. Pipe Type: Single Wall Connector. Used in a Typical Venting Installation. Requires 18" Clearance to Combustibles. Specifications: Overall Dimensions: 48" (L) .