Lock Top II Damper

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Lock Top II Damper

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Lock Top II Damper

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Energy saving Lock-Top chimney dampers provide another choice in top-sealing damper technology. The pop up lid assures that maximum flue size is maintained when damper is open and provides superior weather protection. The silicone rubber gasket seals very tightly to minimize the loss of hot or cool air through the chimney. The Lock-Top II Damper comes with a Lifetime Warranty. The Lock-Top chimney damper has a specially designed chimney cap. This top sealing chimney damper comes fully assembled and ready to install directly to the flue tile.

NOTE: Do Not Use Top Sealing Chimney Damper With Gas Log Sets

Includes: a Lifetime Warranty, 30' stainless steel cable, adhesive and mounting hardware.

Benefits include:

• Tight Seal

• No heat or air conditioning lost up your chimney

• Eliminate downdrafts

• Prevent rain leaks

• Keep pests out


High quality materials that are:

• Made of cast-aluminum and stainless steel

• Precision fitted with our special silicone rubber gasket

• Lifetime Warranty


Size:                 Fits Flue Sizes:

8" x 8"                 6" x 6" to 9" x 9"

8" x 13"               6" x 9" to 9 1/2" x 12 1/2"

8" x 17"               6" x 14" to 9" x 17 1/2"

13" x 13"             9" x 9" to 12 1/2" x 12 1/2"

13" x 17"             9" x 14" to 12 1/2" x 17 1/2"

17" x 17"             14" x 14" to 17 1/2" x 17 1/2"


Customer Reviews 1 item(s)

needs upgrade
Bottom band is way too thin and bends outward when tightening screws. I had to drill into flue for screws to properly hold.
Review by mitchell petrulli / (Posted on 10/30/2015)