J&D Manufacturing's OEM Replacement Blades are designed to work on previous and existing J&D Manufacturing, Pruden or Extreme Air products. Our fan blades are available in Aluminum Paddle, Poly, Galvanized and Cast Aluminum. Made to last in the toughest agricultural environment, our blades work well in commercial, industrial and horticultural as well. All blades come packaged in an individual carton. Special pricing is available on bulk pack purchases.