Fans & Ventilation
Ventilation provides other benefits besides cooling. Without proper ventilation, the air can become stale and condensation can occur, resulting in a risk of respiratory illness and general poor health.
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Fantech RSK 4 Backdraft Damper 4 Inch
Fantech
$17.34Series/Model: RSKFantech RSK 4 Backdraft Damper 4" Manufactured from galvanised sheet steel Spring-loaded blades Can also be mounted verticallyDetails:Back Draft DamperItem DamperType CircularOpening Size 4 Inch DiameterOverall Size 3-1/4 Inch...3786$17.34 -
Fantech RSK 8 Backdraft Damper 8 Inch
Fantech
$28.21Series/Model: RSKFantech RSK 8 Backdraft Damper 8" Manufactured from galvanised sheet steel Spring-loaded blades Can also be mounted verticallyDetails:Back Draft DamperItem DamperType CircularOpening Size 8 Inch DiameterOverall Size 3-1/8 Inch...3788$28.21 -
S&P CAR-100 4 Inch Metal Backdraft Damper
S&P USA Ventilation Systems
$15.14Series/Model: CARCAR Series Backdraft DampersBackdraft dampers are designed with galvanized steel collars and have lightweight aluminum damper blades. They are spring loaded for positive closure.Details:Backdraft DamperType CircularDuct Size 3-15/16 Inch...36899$15.14