Backdraft damper with lightweight blades and foam closure to eliminate noise and increase efficiency.

• Proven design to protect against backdraft in your appliance venting
• Easy to install, heavy duty 26 gauge galvanized metal
  
• Foamed shutter system for quiet closure
• Vertical or horizontal mounting, with one end crimped
  
• Dampers are available in sizes 3" up to 24" ducting. 
• Specifications Sheet - Butterfly Backdraft Damper
  

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