Northern Tool offers the Strongway Totally Enclosed Direct Drive Shutter Exhaust Fan for $229.99. Coupon code "257137" cuts it to $209.99. Choose in-store pickup to avoid the $22.49 shipping fee. That's $40 off list and the lowest price we could find. It features a direct drive enclosed 1/4-horsepower motor with mounted shutters. Deal ends May 22.