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Global Industrial's&#153; series Industrial Roof Exhausters are designed for general ventilation and smoke and fume removal where lower cost and less maintenance are a priority. Key Features and Benefits<ul><li>Ruggedly constructed steel curb cap including spun venturi section for efficient air flow. </li><li>Cast aluminum spark-resistant propellers are standard and suitable for use in hazardous locations when paired with explosion proof motor. </li><li>Butterfly damper section, mill galvanized construction, with damper blades that open when fan is energized and close weathertight when unit is off. Dampers rotate in nylon bearings on a stainless steel axle. </li></ul> Optional Accessories<ul><li>Weatherproof non-fused disconnect switches. </li><li>Insulated roof curbs for flat or pitched roofs. </li><li>Magnetic latches to keep damper section lids down when fan is off. </li><li>Replacement damper sections. </li></ul>

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Global Industrial™ 48" Roof Ventilator, 37000 CFM, 7-1/2 HP, 230/460V