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Reinforced welded core and extra supports for heavy duty application
Recessed screwdriver operated Opposed Blade Damper
Holds up to 1" filter
2x4 T-Bar (20" x 44" duct)
Steel Blade Single Deflection Diffuser 931-30X20 Residential Registers & Grilles Reinforced welded core and extraStandard Features *Surface mount diffuser * Nylon bushings for easy adjustment and quiet setting of steel blades * Countersunk mounting holes for flush appearance with color matching Phillips posi drive screws * Single deflection diffuser with adjustable steel blades * Steel blades are parallel to longest dimension * Allows 2 way air deflection on one plane * Soft White Options * 931 O with recessed screwdriver operated opposed blade damper * 1331 and
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