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904 - Double Deflection Adjustable Aluminum Blade Grille for a 48" x 18" Duct Opening (front blades parallel to shortest dimension)
Zinc plated steel closure spring
22 gauge butterfly style galvanized steel blades
Smoke Test and More Information on MA Series Diffusers
Steel Blade Double Deflection Diffuser 933-10X8 Accessories 904 - Double Deflection AdjustableStandard 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 * Double deflection diffuser * Front blades parallel to longest dimension * Back blades parallel to shortest dimension * All blades adjustable allowing 4 way flow adjustment * Soft White Options * 933 O with recessed screwdriver operated
