7 DuraTech Square Ceiling Support Box 24 height

Supports 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 applicaitons. Also use in short attic spaces ( see instructions). Fits between standard 16" on-center joists and most manufactured home applications. Supports up to 60 feet of DuraTech Chimney. Use adapter to attach DVL or DuraBlack to the support box. A 2" wide trim collar is included.

DuraTech is a double-wall, all-fuel chimney system for used with wood stoves, fireplaces, furnaces, boilers, ranges, water heaters or other appliances fueled by wood, oil, coal or gas, and zero-clearance fireplaces that are factory-built. This system is designed for normal continuous operation at 1000 degrees flue gas temperatures and is subjected to rigorous and stringent HT requirements of the UL standard ensuring its excellence.