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Ships within 48 hours · Estimated delivery Oct 14 - Oct 19
Available 4" thru 28" round
2-way register with stiffened 1/2" fan-shaped louvers for silent operation
Maximum dimension 60x60
Free area equals more than 75% of nominal size
Blades run parallel to longest dimension
4" Horizontal/Vertical Mount Fire Damper 2634-20X14 Specialty Products Available 4" thru 28" roundh3. 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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