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Amazon.com: Strongway Heavy-Duty Fully Enclosed Direct Drive Shutter Exhaust Fan - 14in. 1400 CFM, 120 Volts, 4 Blades : Strongway: Tools & Home Improvement
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Amazon.com: Iliving - 36" Wall Mounted Shutter Exhaust Fan - Automatic Shutter - Single Speed - Vent Fan For Home Attic, Shed, or Garage Ventilation, 6128 CFM, 9000 SQF Coverage Area, Silver (
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