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Standard Features * 2633 - Square or rectangular out-of-airstream fire damper for vertical mount only
with color matching Phillips Pozidriv screws
Countersunk mounting holes for flush appearance with color matching Phillips Pozidriv screws
Use for applications with round ductwork to create a clean and easy to install finish for your round registers or diffusers
Backdraft Vertical Mount 3550-28X36 Accessories Standard Features * 2633 -h3. 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
US$ 103.95
US$ 75.95
