This damper helps regulate heat and prevents drafts in your home. For old, rusty, warped, or missing damper plates we have replacement Vestal Damper plates. It doesn't matter if the old Vestal Damper has poker or rotary controls, in a matter of minutes you can easily slide out the defective plate and slide in a replacement plate.
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.