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Ships within 48 hours · Estimated delivery Aug 9 - Aug 14
Front blades parallel to shortest dimension
stair risers
Standard Features * Cones are one-piece stamped construction providing a clean
Air Patterns
Standard Features * Extruded aluminum construction with steel multi-shutter damper * Margin edges are 7/8" projection for baseboard installation * Nylon bushings for easy adjustment and quiet setting of airfoil blades running parallel to shortest dimension * Countersunk mounting holes for flush appearance
4 1/4" Vertical Mount Fire Damper 2633-36X28 Smoke-Fire Damper Front blades parallel to shortesth3. 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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