hicfm 6300 cfm 20 inch heavy duty shroud fan - ul safety listed | ip44 enclosed powerful 1/4 motor, high velocity air circulator for workshop, garage, commercial or industrial rooms 20" drum fan is up for auction in Industrial & Scientific. The current bid is $32.00, 69% below the $103.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.