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Carnation

Ventilation - Duct Damper Electrical

Duct Damper Electrically Operated 

Buy either Normally Closed or Normally Open depending on what you want.

 

Suncourt ZoneMaster 6" damper normally closed   
http://www.smarthome.com/suncourt-zc106-6-inch-diameter-normally-closed-electronic-hvac-air-duct-damper-with-power-supply.html    $66.18

Normally open

http://www.smarthome.com/suncourt-zo106-6-inch-diameter-normally-open-electronic-hvac-air-duct-damper-with-power-supply.html    $66.18

 

http://www.amazon.com/Suncourt-ZO106-Automated-Damper-Normally/dp/B00099DWDY   Normally open

http://www.amazon.com/Suncourt-ZC106-Automated-Damper-Normally/dp/B0015S9GWE   Normally closed

 

 

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