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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18
Designed for use in walls
Plated Metal or Wood Finish available on this product
Hinged removable door with hinges parallel to the longest dimension
Concealed mounting holes with mounting screws
Backdraft Vertical Mount 3550-20X36 Accessories Designed for use in wallsh3. 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
