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Countersunk mounting holes for flush appearance with color matching Phillips posi- drive screws
screw holes and color matching panhead screws * Standard Color
SD34 Submittal Drawing
950 Series Engineering/Performance Data
listed Fire-Resistance Diffuser * TVB - Thermal Vapor Blanket * Square collar Additional Drawings * 825 MA
3 Hour Out Of Air Fire Door Grille 2663-36X34 Step Down Ceiling Diffuser Countersunk mounting holes for flushh3. Standard Features * 2661 Square or rectangular fire door for vertical mount only. Maximum dimension 60x60. For damper free area chart A click here * 2663 Out of Airstream fire door. Square or rectangular for vertical mount only. Maximum dimension 60w x 52h. For damper free area chart B click here * 2665 Round fire door for vertical mount only. Available 4" thru 52" round. * 3 hour rated * UL and California State Fire Marshall approved * 4 1 4"
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