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    Triangle RIWSD33 37 In x 37 In Double Panel Supply Shutter

    Triangle RIWSD33 37" x 37" Industrial Double Supply Shutter

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    Maximize the efficiency of your industrial ventilation system with the Triangle RIWSD33 Double Industrial Supply Shutter. This heavy-duty, 37" x 34" shutter is engineered by Triangle (SKU: RIWSD33) to provide reliable, automatic airflow control for demanding commercial environments.

    Designed to mount seamlessly to your fan housing, the RIWSD33 automatically opens and closes with fan operation, enhancing energy efficiency and preventing backdrafts. Its dual-panel design supports high airflow volumes and is built to last.

    • Features extruded aluminum blades for durability.
    • The frame is constructed of welded galvanized steel with a bronze finish, polyester powder coated for superior corrosion resistance.
    • Reliable mounting system ensures stability and long-lasting performance.

    Optimize your workspace ventilation with this robust and dependable industrial shutter solution.

    Built to Your Space

    Quote required — we confirm configuration, availability, and freight before purchase. Most quotes are answered within one business day.

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    Need help choosing? Our industrial fan experts are available to help you find the perfect solution. Call us at (888) 864-4344 or use our Fan Selector tool.

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