The DuraTech 6 x 11 Class A Chimney Pipe Square Ceiling Support Box is used to support chimney pipe and provides a positive connection between support box and chimney with a built-in twist lock. Suitable for both flat and cathedral (A-Frame) ceiling applications. Also is used in short attic spaces (see instructions). Fits between standard 16 on-center joists and most manufactured home applications. Supports up to 60' of DuraTech Chimney. Use adapter to attach DVL or DuraBlack to the support box. A 2 wide trim collar is included. Painted black.Fuel Type: Coal, Gas, Oil, Wood Height: 11 Length: 12 Material: Galvanized Steel Pipe Class: Class A Pipe Inside Diameter: 6 Pipe Shape: Round Style: Functional UL Listed: Yes Vent Construction: Double Wall Weight: 8.5 Width: 12
