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Zinc plated steel closure spring
Countersunk mounting holes for flush appearance with color matching Phillips posi- drive screws
904 - Double Deflection Adjustable Aluminum Blade Grille For a 24" x 16" duct Opening (front blades parallel to shortest dimension)
Field installable bowtie damper with round ring
Standard Features * T-Bar lay-in panel with perforated face * 2x2 galvaneal steel panel with seismic support hangers * Round No Labor Collar attached to panel * Soft White Options * 105 P D - multi-shutter damper with hinged perforated face * 105 P O - opposed blade damper with hinged perforated face * TVB - Thermal Vapor Blanket * Square collar
4" 3 Hour Vertical Mount Fire Door 2661-10X10 Smoke-Fire Damper Zinc plated steel closure springh3. Standard Features * 2661 Square or rectangular fire door for vertical mount only. Maximum dimension 60x60. For damper free area chart A click here * 2663 Out of Airstream fire door. Square or rectangular for vertical mount only. Maximum dimension 60w x 52h. For damper free area chart B click here * 2665 Round fire door for vertical mount only. Available 4" thru 52" round. * 3 hour rated * UL and California State Fire Marshall approved * 4 1 4"
US$ 40.00
US$ 180.00
US$ 180.00
US$ 180.00
US$ 80.00
US$ 180.00
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