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listed Fire-Resistance Diffuser * TVB - Thermal Vapor Blanket * Square collar
14" and 16" Options * Field installable Bowtie Damper (BD) * HL OR - factory installed opposed radial damper (sizes 6"-14") * HL FR - U
Spiral pipe diameter must be 4” larger than the width of the grille
032 Aluminum construction * Tamper proof screws * Standard Color
Accessory to the 90 Series
Aluminum Airfoil Blade Single Deflection Diffuser 901-48X4 Finish:Driftwood Tan listed Fire-Resistance Diffuser * TVBStandard Features * Extruded aluminum (. 055 T6) surface mount diffuser * Nylon bushings for easy adjustment and quiet setting of airfoil blades * Countersunk mounting holes for flush appearance with color matching Phillips posi drive screws * Single deflection diffuser with adjustable airfoil blades * Airfoil blades are parallel to longest dimension * Allows 2 way air deflection on one plane * Soft White Options * 901 O with recessed screwdriver
