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Triangle Fans

RIWS18 Triangle Fans RIWS Supply Shutters - Single Panel Shutters esigned for long-lasting operation and proper airflow with Exhaust and Supply Models, Extruded aluminum blades, Welded galvanized steel frame, and Bronze pivot bushings -27 3/8” @ 69 3/8”

Regular price $233.00 USD
Regular price Sale price $233.00 USD
Sale Sold out

Triangle’s Shutters are designed for long-lasting operation and proper airflow. With a bronze finish, polyester powder coated, welded galvanized steel frame, extruded aluminum blades, and bronze pivot bushings, Triangle Shutters are equipped to withstand even the most demanding environments. Note: Triangle’s Supply Shutters must be equipped with an operator. The shutter must be opened before the fan is energized.

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    Triangle manufactures a full range of supply shutters (backdraft dampers) to meet your needs. All of our shutters are designed and engineered to combine durability and strength.


    Exhaust and Supply Models
    Sizes range from 27 3/8” square up to 69 3/8” square
    Single and double panel models
    Bronze pivot bushings
    Extruded aluminum blades
    Welded galvanized steel frame
    Bronze finish polyester powder coated frame
    Wall mount and Fan Mount Models



    Please Contact Us for Product Literature,