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Home > Products > SB & SFB
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-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"

 SB / SFB Download
 Catalog
 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
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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 5/16 5/16 0.059 sq.ft.
SB 6 6" 5 23/32 8 25/32 2 3/4 3/8 5/8 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 13/16 5/16 0.054 sq.ft
SFB 6 6" 5 23/32 6 29/32 5 29/32 3 15/16 2 9/16 27/32 11/32 0.13 sq.ft.
Dimensions are in inches. Product information is Subject to Change Without Notice

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