This Shutter Fan is perfect for barns， building peaks， greenhouses， warehouses - anywhere ventilation is needed

The ES Shutter Fan features a balanced， three-blade aluminum blade and a zinc-plated steel hub. Meets OSHA 1910.212(a)(5) requirements to mount at any height on inlet side of fan. (When mounted， shutter side should be 7' above ground.) Pre-wired with a cord and plug - no electrician required!

• Won't Open: High-efficiency aluminum shutters with tie bar eliminate shutter flapping and unwanted opening on windy days
• Quiet: Fully enclosed， maintenance-free， high-efficiency direct-drive motor has completely sealed ball bearings for a smooth， quiet operation
• Easy Cleaning: Chrome guard allows for easy cleaning
• No Assembly: Ships fully assembled

NOTE: Item No. 226838 is a 3-phase shutter fan. NOTE: Variable speed fans require separate variable speed control to adjust fan speed.