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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19
Stamped from cold roll steel
Adjustable aluminum airfoil blades oriented for 1 or 2 way airflow pattern
Adjustable aluminum curved blades
904 - Double Deflection Adjustable Aluminum Blade Grille For a 40" x 18" Duct Opening (front blades parallel to shortest dimension)
4-Way ceiling register with stiffened 1/2" fan shaped louvers for silent operation
4" Horizontal/Vertical Mount Fire Damper 2634-22X8 past 12 months Stamped from cold roll steelh3. 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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