3" x 11" Ventis PelletVent Galvanized Square Ceiling Support - VP-CSS03
This square ceiling support can be used on flat, cathedral, or sloped ceilings, supports up to 40' of venting, and has a trim collar. Clamps are 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.