Backdraft Vertical Mount 3550-16X30 Specialty Products Retainer cables are provided on

Retainer cables are provided on sizes 12" and larger to allow the inner cones to hang securely while adjusting the diffuser

Airfoil blades individually adjustable on 3/4" centers

904 - Double Deflection Adjustable Aluminum Blade Grille For a 14" x 10" Duct Opening (front blades parallel to shortest dimension)

Standard Features * 4000 - door core grille with single frame * 4100 - door core grille with additional loose frame *

TS Series Submittal

Backdraft Vertical Mount 3550-16X30 Specialty Products Retainer cables are provided onh3. 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