DuraTech 8" Diameter 11" Square Ceiling Support Box - 8DT-CS11-2

The DuraTech 8" Diameter 11" Square Ceiling Support Box offers essential support for chimney pipes, ensuring a secure connection with its built-in twistlock feature. Designed for both flat and cathedral ceilings, this support box is also suitable for use in short attic spaces, enhancing the stability and safety of your chimney system. See all 8" DuraTech Chimney Pipe. Additional Information: With a Thermal Tech blanket insulation encased between duel walls, DuraTech offers superior safety and performance. It keeps the outer wall cool while ensuring high flue gas temperatures for optimum draft performance. The inner wall is 25% thicker than competitive chimneys, for an extra margin of safety. Designed for normal, continuous operation at 1000 °F flue gas temperatures, DuraTech is subjected to rigorous and stringent HT requirements of the UL standard, including one hour at 1400 °F, plus three ten minute chimney fire tests at 2100 °F. WARNING: This product can expose you to chemicals including Chromium, which is known to the State Of California to cause cancer and birth defects or other reproductive harmFor more information go to http://www.P65Warnings.ca.gov.