The original Ultramax DF and Ultramax SF units have been replaced by the new Ultramax DF Power and Ultramax SF Power units. We will continue to provide replacement parts as long as they are still available from the original manufacturer. If you do not see what you are looking for, please contact our Technical Services personnel: sales@gesswein.com or 800-544-2043 Monday-Friday from 9am to 5pm ET.