Duravent 6DT-CS24 DuraTech 24-Inch Square Ceiling Support Box, 6-Inch...

If you have a cathedral ceiling, you may want an extra measure of support for your chimney pipe. This handy support box is designed for either flat or cathedral ceilings, and is meant for use with a 6" DuraTech chimney pipe. It can support up to 60' of chimney, and is approximately 12" W x 12" L x 24" H. This product features a black finish, and a trim collar.