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Backdraft Dampers
| DirectFans.com offers the back draft damper which is very light-weight and made of galvanized steel. Sizes range from 4”, 6”, 8”, 10”, and 12”. It also has the spring loaded feature so it works with positive pressure. |
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| Model |
Diameter
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Length
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BD 4
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4”
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3 ¼”
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BD 6
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6”
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3 1/8”
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BD 8
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8”
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3 1/8”
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BD 10
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10”
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3”
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BD 12
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12”
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3”
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