Exceptionally designed for exterior applications, the SB is easy to install and have large openings to reduce clogging. Standard with flapper damper, it prevents outside air from back-drafting into the house through the dryer. The SB is suited to exhaust fan applications such as dryer, bathroom, or kitchen exhaust venting. The heavy-gauge anodized aluminum construction is corrosion-resistant for durability. Removable from ductwork for easy cleaning for dryer vent use.
*Note
No louver manufacturer warrants their louver to prevent water penetration under all possible circumstances of wind and rain.
 Material: Aluminum
 Finish: Anodized (Custom Colors Available)
 Sizes: 4" & 6"
FEATURES
  
    |  With Backdraft Flapper Damper | 
        Anodized Finish for Corrosion Protection |  
      
  
    |  4" or 6" Round Duct Connection | 
         Large Free Area Reduces Clogging | 
      
  
    |  All Aluminum Construction | 
    
 
    DIMENSIONS
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