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Airfoil blades individually adjustable on 3/4" centers
Double deflection surface mount grille with adjustable airfoil blades
SD52 Submittal Drawing
Heavy gauge cold roll steel
Nylon bushings for easy adjustment and quiet setting of blades running parallel to shortest dimension
4" Horizontal/Vertical Mount Fire Damper 2634-6X6 T-Bar Airfoil blades individually adjustable onh3. Standard Features * 2633 Square or rectangular out of airstream fire damper for vertical mount only. * 2634 Square or rectangular Spring actuated (6) out of airstream fire damper for horizontal or vertical mount. * UL and California State Fire Marshall approved * 4 1 4" standard frame style * Maximum dimension 60w, 52h * Interlocking steel roll formed blade (3) with roll formed frames (1) * Blade lock (5) * Damper manufactured from corrosion
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