Barn fans have to operate in a range of conditions, often non-stop for many hours. Keeping your livestock barns properly ventilated is a top priority year-round. Make sure your fans are in good condition by replacing hardware, including fan blades. Farmer Boy has a range of replacement fan propellers for everything from circulation to exhaust fans. Shop online below or give our sales team a call at 1-800-845-3374 to put together a custom package.