Backdraft Vertical Mount 3550-28X36 Accessories Use for applications with round

Use for applications with round ductwork to create a clean and easy to install finish for your round registers or diffusers

Heavy gauge steel construction

Standard Features * Aluminum construction deep housing and inner concentric rings * Designed for high volume long throw applications * Adjustable air direction * Easily installed with use of strong spring clips * No screwholes offers clean appearance for wall mount * Anodized finish Options * 1204 - turbo nozzle in panel mount

Standard Features * 1/2" x 1/2" x 1/2" aluminum lattice face *

with color matching Phillips Pozidriv screws

Backdraft Vertical Mount 3550-28X36 Accessories Use for applications with roundh3. 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