J&D Manufacturing’s Whirl-Wind galvanized box fan is leading the market in performance, durability and ease of installation. The Whirl-Wind features a strong galvanized housing and heavy-duty, 12-gauge welded wire mesh guards that are hot dip galvanized. Poly guard clips reduce noise and vibration between the housing and guard. Whirl-Wind fans include attached hanging brackets for quick and easy installation in your poultry, dairy, or commercial building. The high velocity air pattern provides maximum air flow at the lowest electrical cost.