- 4" Inch Backdraft Damper for Straight or Flex Duct. Bathroom Exhaust Fan. Kitchen Hood Exhaust Fan and Different Dryer Fan Backflow Preventer. Steel Damper with Aluminum Valve Flaps (4")
−9%

- 4" Inch Backdraft Damper for Straight or Flex Duct. Bathroom Exhaust Fan. Kitchen Hood Exhaust Fan and Different Dryer Fan Backflow Preventer. Steel Damper with Aluminum Valve Flaps (4")

4.4171 ratings
Resale price
$14.25
New price
$15.60
You save $1 · 9% below new price
1 used offer
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$11$14$16Sep 29Today

18 price changes since Sep 29 · Each point is a recorded price change

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