Lyemance DLEM1313 13 X 13 Energy-Saving Damper

Lyemance Dampers mount easily atop a flue tile with silicone sealant. A 32' stainless cable drops down the flue and mounts in the firebox. Longer cables and a 4' cable shield may be ordered separately. Damper comes with instructions, hardware, and silicone sealant. Note: Don't use lymance dampers with gas logs, as failure to open could cause carbon monoxide to back up into the house. In case of gas leak, gas could be trapped in the flue resulting in explosion. Features: Lifetime Warranty. Silicone rubber seals tight. Cast-aluminum construction. Easy opening with power lever assist. Easily mounts atop a flue tile. Specifications: Overall Dimensions: 13 (W) x 13 (D). Fits Inside Flue Sizes: 10x10 to 121/2x121/2. Height of Open Lid: 5.