Duravent 6" Diameter Duraplus 2100ht Square Ceiling Support Box

Use with flat, vaulted, or cathedral ceilings. Square Ceiling Support Box is painted black. Refer to Ceiling Pitch table to determine size of support box needed. Supports up to 35’ of DuraPlus Chimney. Starter Section built-in. For adapters, see DVL and DuraBlack section. Trim included.