Backdraft Vertical Mount 3550-24X36 Step Down Ceiling Diffuser Rust resistant pre-coat with durable

Rust resistant pre-coat with durable powder finish

SUBMITTAL 2720 Series Submittal

Standard Features * Extruded aluminum construction with steel multi-shutter damper * Margin edges are 7/8" projection for baseboard installation * Nylon bushings for easy adjustment and quiet setting of airfoil blades running parallel to shortest dimension * Countersunk mounting holes for flush appearance

Perforated Face Grille

2550 Series Submittal

Backdraft Vertical Mount 3550-24X36 Step Down Ceiling Diffuser Rust resistant pre-coat with durableh3. 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