Lock-Top 09507 Stainless Steel 13" x 13" Chimney Cap and Damper with 3/4" Mesh

- Item #: BCI1430283

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Stainless Steel
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13" x 13" Lock-Top II Chimney Cap and Damper

Traditional dampers are located in the "throat" of a fireplace. They are made of cast-iron and are housed in a low-tech frame work. These cast-iron dampers do not seal well—they have a leaky, rough, metal-to-metal seal. Recent lab studies have shown that even a new throat damper can leak up to $200 of heating and cooling a year. Imagine how much energy an old, rusted out damper leaks!

Lock-Top Energy Saving Dampers seal tightly to save you money. Lock-Top's rubber gasket seals tightly like a storm door for your fireplace, and keeps heating and cooling dollars where they should be...in your home. Lock-Top mounts on top of your chimney to keep out animals and rain, and easily operates from inside your firebox, sealing tight every time you close it—eliminating any draft.

Stainless Steel is the most popular cap material due to its longevity and flexibility of fuel being burned. Meaning if you have a wood fireplace and switch to gas logs, the Stainless Steel Cap can handle the change with no concern. These Stainless Steel Caps are backed by a Lifetime Warranty and won't rust, so will remain looking beautiful for many years to come.


  • Silicone Rubber Seals Tight
  • Stainless Steel & Cast-Aluminum Construction
  • 30' Cable Included
  • Includes sweep's ring which allows for easy removal of the damper from the flue for cleaning.
  • Lifetime Warranty
  • RS Adaptor Required for Round Factory-Built Chimney Installation


  • Size: 13" x 13"
  • Fits Inside Flue Sizes: 9" x 9" to 12-1/2" x 12-1/2"
  • Height: 11-3/8"

Gas appliance warning: Don't use top-sealing dampers with gas logs. If the fireplace is converted to use as a gas appliance such as gas logs, this damper should be removed.

Additional Lock-Top Links

Our SKU: Lock-Top 09507

This product is listed under the following manufacturer number(s):

  • Lock-Top 09507
    Stainless Steel

*Denotes a finish or option that has been discontinued

Lock-Top 09507 Product Specifications

Base Dimensions 13" x 13"
Compatibility Factory-Built Chimneys (with Adaptor), Masonry Style Chimneys
Configuration Top Mount
Fuel Type Coal, Pellet, Wood
Function Damper
Height 11.375
Length 13
Material Stainless Steel
Mesh Size 3/4"
Product Weight 14.7
Width 13

Installation Resource Center

Whether you are installing the product yourself or hiring a professional, our installation Resource Center has everything you need to get your project done. Visit the Installation Resource Center to get started.

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