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Ventilation Backdraft Dampers

Spring loaded backdraft dampers to prevent backdraft of outside air.
Page: 1  Showing 1 - 7 of 7 Products, Sorted By
  Product Details Stock Price Purchase
Aldes 4
Aldes 4" Backdraft Damper - BDD4
Backdraft damper with galvanized steel collar, lightweight aluminum damper blades, and gasketing. Spring loaded for positive closure. Fits 4" Round Duct  [More...]
MFG#: 99 023
In Stock
$24.55
Aldes 5
Aldes 5" Backdraft Damper - BDD5
Backdraft damper with galvanized steel collar, lightweight aluminum damper blades, and gasketing. Spring loaded for positive closure. Fits 5" Round Duct  [More...]
MFG#: 99 024
In Stock
$26.40
Aldes 6
Aldes 6" Backdraft Damper - BDD6
Backdraft damper with galvanized steel collar, lightweight aluminum damper blades, and gasketing. Spring loaded for positive closure. Fits 6" Round Duct  [More...]
MFG#: 99 025
In Stock
$27.40
Aldes 8
Aldes 8" Backdraft Damper - BDD8
Backdraft damper with galvanized steel collar, lightweight aluminum damper blades, and gasketing. Spring loaded for positive closure. Fits 8" Round Duct  [More...]
MFG#: 99 026
In Stock
$39.95
Suggested: $49.99
You Save: $10.04
Aldes 12
Aldes 12" Backdraft Damper - BDD12
Backdraft damper with galvanized steel collar, lightweight aluminum damper blades, and gasketing. Spring loaded for positive closure. Fits 12" Round Duct  [More...]
MFG#: 99 028
Ships in 2-3 Days
$88.40
Aldes 10
Aldes 10" Backdraft Damper - BDD10
Backdraft damper with galvanized steel collar, lightweight aluminum damper blades, and gasketing. Spring loaded for positive closure. Fits 10" Round Duct  [More...]
MFG#: 99 027
In Stock
$56.80
Aldes 7
Aldes 7" Backdraft Damper - BDD7
Backdraft damper with galvanized steel collar, lightweight aluminum damper blades, and gasketing. Spring loaded for positive closure. Fits 7" Round Duct  [More...]
MFG#: 99 035
1 Week To Ship
$38.95
Page: 1  Showing 1 - 7 of 7 Products