5" DuraVent DirectVent Pro Cathedral Support - 58DVA-CS
This support box is used to pass through ceiling and support pipe. May be used on vaulted or flat ceilings. Trim and clamp 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.