DuraVent DuraTech All-Fuel Chimney Round Ceiling Support Trim Collar - For 7" and 8" Inner Diameter DuraTech: A venting pipe with an inner diameter of 8" is required for this unit. Install a ceiling support collar to disguise the space between the chimney pipe and the spherical ceiling support, and your fireplace will look better. This collar will finish off the edge surrounding the piping without detracting from the overall design, thanks to its stylish black finish. This support trim collar is suitable for use with any fuel chimney system, such as fireplaces, wood stoves, and furnaces. With this trim collar, DuraTech backs up their goods with a limited lifetime warranty.

Conceals space between chimney pipe and Round Ceiling Support Sleek black finish For use with 7" and 8" DuraTech chimney pipes Limited lifetime warranty