Post Equipment Corp. has 15” and 18” feeder wagon magnets for sale for 3-auger discharges and for chain discharges. These are the flat plate type magnets with aluminum cast frames. These magnets fit most feeder wagon brands with chain, auger discharges, or slide-tray discharges. Call our parts department for competitive parts and shipping prices, or call us with any questions – 712-476-4500 in Rock Valley, Iowa.