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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23
Standard Features * Steel construction * Generous free area for quiet operation * Lever operated single-blade damper * Removable face and damper * Tension wings to stabilize damper * Available in 15"
For damper free area chart B click here * 2665 - Round fire door for vertical mount only
Ceramic fiber blade installation with fiberglass cover*
904 Series Submittal
Backdraft Vertical Mount 3550-14X30 Specialty Products Standard Features * Steel constructionh3. Standard Features * 3550 Vertical mount * 3560 Horizontal mount air up * 3570 Horizontal mount air down * 3580 Round sizes available 5" to 24" * All non motorized backdraft dampers * Dampers are opened by air pressure differential and closed by gravity * 16 gauge channel frame with 26 gauge galvanized blades * Out of airstream linkage * Blades are vee stiffened 26 gauge for strength and stability * Square steel pivot pins * Nylon bushings * Single
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US$ 350.00
US$ 22.99
