7-8 DuraTech Round Trim Collar for Round Support Box

Conceals the gap between the Round Ceiling Support Box and the Ceiling cutout. Also available in square.

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.