6" DuraVent DuraPlus 11" Square Ceiling Support Box - 6DP-CS11

11" DuraPlus Square Ceiling Support Box is used with flat, vaulted, or cathedral ceilings. Square Ceiling Support Box is painted black. Supports up to 35' of DuraPlus Chimney. Starter Section built-in. Trim included.

WARNING: Carcinogens: This product can expose you to chemicals including Lead, which is [are] known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.