None 18 in. Black Industrial Wall Mount Fan 3-Speed Indoor/OutdoorCommercial Ventilation Metal High Velocity Fan

The 18 in. industrial wall mount fan comes with the newest technology of dual ball bearing while most of the other products on the market are using sleeve bearing. Air Delivery CFM - High: 4000. Medium: 3500. Low: 3000. Rear-mounted controls allow you to adjust different speeds easily. OSHA compliant rust-resistant grille, Extra long 6 ft. power cord, 3-speed heavy-duty thermally protected 120-Volt, 60 Hz, PSC motor. Ideal for use in warehouse, greenhouse, workshop, patio, factory, and basement.