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7" Galvanized Barometric Gas Damper with Thimble Kit - A7-BT-G

Item: 03602981

Please contact Customer Partner at 800-247-3305 for alternatives or expected availability.

  • Dimensions: 4" x 5'
  • Easy to assemble and can be combined to obtain the required installation height
  • Sectional overlap of 1.5". Hence, net assembled length is 1.5" less than listed lengths
  • Venting gas fired appliances, water heaters, furnaces, stoves, etc.
  • Type “B” Gas Applications
  • LockTab - Snap together non-positional lock system
  • Selkirk Gas Vent pipe & fittings have been tested & listed per UL 441 for installation as Type B & B-W gas vents to be installed in single & multi-story buildings in accordance with the standards of The NFPA NFPA54 & NFPA211.

7" Galvanized Barometric Gas Damper with Thimble Kit - A7-BT-G

This damper is used to regulate drafts on gas-fired appliances, including furnaces, boilers, and water heaters. Comes with thimble kit to make installation easier.

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

One-Year Warranty