Backdraft Vertical Mount 3550-16X25 T-Bar Options Recessed screwdriver operated Opposed

Options Recessed screwdriver operated Opposed Blade Damper

Adjustable aluminum airfoil blades oriented for 1 or 2 way airflow pattern

Countersunk mounting holes for flush appearance with stainless sheet metal screws

Standard Features * Step down core design allowing for uniform air distribution * Four way air diffusion * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft white Options * 100 - diffuser only (no damper) * 100 D - diffuser with steel multi-shutter damper * 100 O - diffuser with steel lever operated opposed blade damper * No Labor Collar * Standard Color or Designer Color Finish available on this product

Lever operated Opposed Blade Damper

Backdraft Vertical Mount 3550-16X25 T-Bar Options Recessed screwdriver operated Opposedh3. 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