Pay in 4 interest-free payments of $73.50 Learn more
Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
SUBMITTAL 2720 Series Submittal
OTHER DOCUMENTS
Designed to minimize vision into the air duct
Check out the All About Spirals page
Blades are parallel to the longest dimension
Backdraft Vertical Mount 3550-26X24 past 12 months SUBMITTAL 2720 Series Submittalh3. 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
