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Aoibox 18 Inch Aluminum Shutter Exhaust Fan in Silver, High Speed 1450 RPM, 2000 CFM, 1-Pack SNMX5164 - The Home Depot
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Amazon.com: VENTISOL 18 Inch Shutter Exhaust Fan Wall Mounted, Aluminum with 1.65 Meters Power Cord Kit,High Speed 2500CFM, Ventilation Fan for Garage,Greenhouse,Attic,Shed,Shop,Black : Tools & Home Improvement
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Amazon.com: iPower 18 Inch Shutter Exhaust Fan Aluminum High Speed 1450RPM, 2000 CFM, Silver, with Adjustable Programmable Thermostat : Tools & Home Improvement
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Full Metal Strong Industrial Exhaust Fan 8 10 12 14 16 18 20 Inch for Warehouse - FAB Industrial Exhaust Fan - BRESPALIN CO., LTD.
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Canarm 18 Inches AX-EC Shutter Mounted 2370 CFM Fans Direct Drive Variable Speed - AX18-ECV | HVACDirect.com
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Ball Bearing Heavy Duty Industrial Wall Mounted Ventilator Fan 18 Inch - FAB Industrial Exhaust Fan - BRESPALIN CO., LTD.
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