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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19
Blades are parallel to the shortest dimension
Dampers above 80 square inches free area will be provided with blade insulation
904 Series Submittal
w/ Steel Opposed Blade Damper
Allows for 4-way airflow
4 1/4" Vertical Mount Fire Damper 2633-14X10 T-Bar Blades are parallel to theh3. 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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