17x17 inch Chimney Cap Damper

This energy saving damper seals tightly to save you money! The rubber gasket seals tight like a storm door for your fireplace and keeps heating and cooling dollars where they should be…in your pocket!  Constructed with a stainless steel lid attached by stainless steel springs to a cast aluminum frame, this damper is mounted on top of your chimney flue to keep out animals and rain, and easily operates from inside your firebox, sealing tight every time you close it.