Product Size Price
Size PriceButterfly Backdraft Dampers
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Details & Benefits
- Quiet & Efficient Foamed Mechanism
- Durable 26 gauge metal thickness
- Round 3", 4", 5", 6", 7", 8",10", 12" & 14"
- No Rusting Hinges or Springs
- Easy Install Based on Airflow Direction
- Larger sizes available upon request
- Do not install vertically facing downward
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Butterfly Damper 3" $21.00
$21.00 Butterfly Damper 6" $26.00
$26.00 Butterfly Damper 8" $28.00
$28.00 Click below to add to shopping cart
Butterfly Backdraft Dampers prevent the flow of outside air into a house through ducting when either an exhaust fan or intake is off. These sensitive butterfly dampers will accomplish this with minimal effect on the exhaust stream while providing a good seal against backdrafts.
Internal Shutter Damper With Foam Seal For Air Intake or Exhaust
Butterfly Damper
Butterfly Damper 7" $27.00
$27.00 Butterfly Damper 5" $25.00
$25.00 Butterfly Damper 4" $23.00
$23.00 Butterfly Damper 10" $31.00
$31.00 Butterfly Damper 12" $33.00
$33.00 Butterfly Damper 14" $35.00
$35.00 Additional Information
Backdraft dampers prevent air leakage in your inline fan setup. These backdraft dampers are made out of steel and are designed for vertical or horizontal mounting, made of galvanized steel, and have lightweight aluminum damper blades The backdraft dampers are easy to install and are an important part of installing a duct fan system for kitchen, bath and other applications. These dampers install inside the circular ducting to prevent a backdraft of air when the fans are switched off. The backdraft shutters are available to fit 4",5",6",8",10",12" and 14" ducting. These inline backdraft dampers ship via UPS Ground for normal dellivery or Fed Ex for 2nd or Next Day Delivery.
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