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Round Backdraft Dampers

Round backdraft dampers are devices used to prevent the backflow of air in ventilation systems. They are typically installed in the ductwork of commercial and industrial buildings and are designed to allow airflow in one direction while preventing airflow in the opposite direction. Round backdraft dampers work by using a spring-loaded or gravity-operated door that closes when air flow in the opposite direction exceeds a certain level. When the airflow is in the correct direction, the door opens, allowing air to flow through the ductwork.

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Round Steel 4 inch Backdraft Damper CAR100

Item #: CAR100
Shutter Dimensions:
4"
Construction:
Galvanized Steel
Dimensions:
3.9375" W x 3.9375" H
View Details
Your Price: $29.86 / each ea
each
Round Steel 5 inch Backdraft Damper CAR125

Item #: CAR125
Shutter Dimensions:
5"
Construction:
Galvanized Steel
Dimensions:
4.9375" W x 4.9375" H
View Details
Your Price: $32.67 / each ea
each
Round Steel 6 inch Backdraft Damper CAR150

Item #: CAR150
Shutter Dimensions:
6"
Construction:
Galvanized Steel
Dimensions:
5.875" W x 5.875" H
View Details
Your Price: $33.38 / each ea
each
Round Steel 8 inch Backdraft Damper CAR200

Item #: CAR200
Shutter Dimensions:
8"
Construction:
Galvanized Steel
Dimensions:
7.875" W x 7.875" H
View Details
Your Price: $34.78 / each ea
each
Round Steel 10 inch Backdraft Damper CAR250

Item #: CAR250
Shutter Dimensions:
10"
Construction:
Galvanized Steel
Dimensions:
9.8125" W x 9.8125" H
View Details
Your Price: $39.71 / each ea
each
Round Steel 12.4 inch Backdraft Damper CAR315

Item #: CAR315
Shutter Dimensions:
12.4"
Construction:
Galvanized Steel
Dimensions:
12.375" W x 12.375" H
View Details
Your Price: $46.05 / each ea
each
Round Steel 14 inch Backdraft Damper CAR355

Item #: CAR355
Shutter Dimensions:
14"
Construction:
Galvanized Steel
Dimensions:
14" W x 14" H
View Details
Your Price: $55.20 / each ea
each
Round Steel 16 inch Backdraft Damper CAR400

Item #: CAR400
Shutter Dimensions:
16"
Construction:
Galvanized Steel
Dimensions:
17.75" W x 15.75" H
View Details
Your Price: $62.24 / each ea
each
reFresh Outside Air Kit w/ Envirosense Controller & 6 inch Motorized Damper MD6-ES24VK

Item #: MD6-ES24VK
Shutter Dimensions:
6"
Construction:
Plastic/Aluminum
Dimensions:
6" x 6" x 10"
View Details
Your Price: $193.89 / each ea
each
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