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Exceptionally designed for exterior applications, the SFB and the SB are 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. Both models are suited to exhaust fan applications such as dryer, bathroom, or kitchen exhaust venting. The heavy-gage anodized aluminum construction is corrosion-resistant for years of service. Removable from ductwork for easy cleaning for dryer vent use. Material  Heavy-Gage Aluminum Finish  Anodized (Custom Colors Available) Sizes  4" & 6" Бе SB / SFB Download  Submittal Sheet  SB (Inch / Metric)  SFB (Inch / Metric)  High Resolution Picture  (SB / SFB)  Installation Instruction Features  With Back-Draft Flapper Damper  Large Free Area Reduces Clogging  Aluminum Construction  Anodized Finish for Corrosion Protection

Model SB Dimensions (PDF Version) MODEL DUCT SIZE A B C D E F FREE AREA SB 4 4" 3 13/16 5 23/32 19/32 1 21/32 9/32 TBA TBA SB 6 6" 5 23/32 8 25/32 2 3/4 9/32 3/4 0.14 sq.ft. Dimensions are in inches. Product information is Subject to Change Without Notice

Model SFB Dimensions (PDF Version) MODEL DUCT SIZE A B C D E F G FREE AREA SFB 4 4" 3 13/16 4 3/4 3 25/32 2 11/16 1 9/16 9/16 TBA TBA SFB 6 6" 5 23/32 6 29/32 5 29/32 3 15/16 2 9/16 3/4 3/4 0.13 sq.ft. Dimensions are in inches. Product information is Subject to Change Without Notice

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