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BD - field installable Bowtie Damper (available on even sizes 6"-14")
Heavy duty steel honeycomb construction
904 - Double Deflection Adjustable Aluminum Blade Grille for a 48" x 18" Duct Opening (front blades parallel to shortest dimension)
contour molded fiberglass back with a foil barrier backing
Steel Blade Single Deflection Diffuser 932-18X20 Finish:Designer Color - Cement Gray BD - field installable BowtieStandard 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 shortest dimension * Allows 2 way air deflection on one plane * Soft White Options * 932 O with recessed screwdriver operated opposed blade damper * 1331
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