16" x 16" x 1" shaft blower wheel for 4500 cfm coolers. Fits Aerocool, Champion 16BW, and Phoenix Manufacturing coolers that use 1" shaft. Replaces Champion #16BW.
20BW Blower Wheel for Champion Mastercool / Ultracool 20 x 16-3/4 with 1" shaft. Ships direct from manufacturer. Please allow 5-10 business days for shipment.