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Ships within 48 hours · Estimated delivery Aug 9 - Aug 14
Standard Features *
Designed for protection of ceiling openings in fire rated floor/ceiling assemblies with fire resistance ratings of 3 hours or less
Designed for ceiling or sidewall applications
PERFORMANCE DATA
4 1/4" Vertical Mount Fire Damper 2633-20X18 past 12 months Standard Features *h3. 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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