The DuraTech 7 Class A Chimney Pipe 24 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 blackADA Compliant: No Collection: DuraTech Finish: Black Fuel Type: Coal, Gas, Oil, Wood Height: 24 Length: 13 Material: Galvanized Steel Outer Diameter: 11 Pipe Class: Class A Pipe Inside Diameter: 7 Pipe Shape: Square Style: Functional Vent Construction: Double Wall Weight: 18.8 Width: 13
