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    Triangle IWS45: 49" x 49" Industrial Exhaust Shutter ID

    Triangle IWS45: 49" x 49" Industrial Exhaust Shutter ID

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    Maximize your ventilation system’s efficiency with the genuine Triangle IWS45 Industrial Exhaust Shutter (SKU: IWS45). This heavy-duty 49" x 49" Shutter ID is engineered for demanding commercial and industrial environments, ensuring superior airflow control and protection for large exhaust fans.

    Designed for easy integration, the IWS45 features:

    • Inside Dimensions: A precise 49" x 49" fit for industrial fan housing.
    • Durable Construction: Built with a robust frame and automatic louvers to reliably seal the opening when the fan is off, protecting against weather, dust, and insects.
    • Broad Compatibility: Often paired with 48-inch fans and systems up to 2 HP (Outside Dimension: 51 3/8" x 51 3/8").

    Choose the Triangle IWS45 for reliable, maintenance-free operation and guaranteed optimal performance of your ventilation equipment.

    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 Finder.

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