This 40"x36" Shoemaker Horizontal Mount Backdraft Damper (Air Down) 3570 Series is made of 26-gauge galvanized blades that are vee-stiffened to add stability and strength. It has a 16-gauge channel frame and an out-of-airstream linkage. This damper is opened by air pressure differential and closed by gravity. It is available in single blades on dampers 10 inches high or less. Its blades are parallel to the first dimension given. Dampers with multiple blades feature adjustable counter balance arms mounted to the center of the blades, with adjustable weights that can be placed along the length of the arm for different opening pressures. It comes equipped with square steel pivot pins in nylon bushings and foam blade edges to reduce noise. It is available from a minimal size of 6"x6" and a maximum size of 48"x48". This backdraft damper comes with a galvanized finish.This Shoemaker 3570 is designed to fit and cover a 40" wide by 36" high opening. The quality and functionality of this damper are only two of the many reasons why Shoemaker Manufacturing leads the field in innovative air-grille design for real world applications. The Shoemaker 3570 Series has a complete line of products designed for homes, offices, stores, and many other commercial applications. The Shoemaker Manufacturing Company leads the field in innovative air-grille design and it guarantees that its products are free from defective materials. Unlike other products, Shoemaker grilles have a baked-on textured polyester powder coat that can resist scratches and does not wear or fade out easily. Please measure the hole opening size instead of measuring the face plate of your old grille. Please note that this damper is designed to fit over a 40"x36" existing hole or duct. Refer to the Specification Sheet for more information.
|Product:||Vents and Terminations|
|Use:||Ducting and Venting|
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