DuraVent DuraTech 6" inner diameter square ceiling support box: Measures 36" in height Designed to work with DuraTech pipes and components that have the same 6" inner diameter as the included 2" wide trim collar. A vent pipe with a 6" inner diameter is required for this unit. With this Square Ceiling Support Box, you can ensure that your DuraVent DuraTech system is fully supported and ready to go. It stands 36" tall and is compatible with DuraTech pipes and components that have a 6" inner diameter. This component has a 2" wide trim collar and can be used on cathedral or flat ceilings. For the ultimate in cost-effective, high-quality venting components for your home, look no farther than DuraVent DuraTech.

DuraVent DuraTech 6-inch inner diameter square ceiling support box Measures 36 inches tall Designed for use with DuraTech pipes and components with the same 6-inch inner diameter 2-inch wide trim collar included