These replacement rotors fits Pondmaster® Energy-Saving Hy-Drive pumps. These replacement impellers are available for all Pondmaster® Energy-Saving Hy-Drive Pumps, Pondmaster® Hy-Drive Skimmer Pumps or Supreme® Hy-Drive Pumps. SKU UPC Code Compatible Pump 21005 025033210059 Pondmaster Hy-Drive Pump 1900 (#20210) Supreme Hy-Drive Pump 1900 (#40415) 21010 025033210103 Pondmaster Hy-Drive Pump 2550 (#20215) Pondmaster Hy-Drive Skimmer Pump 2550 (#20355) Supreme Hy-Drive Pump 2550 (#40425) 21015 025033210158 Pondmaster Hy-Drive Pump 4850 (#20220) 21020 025033210202 Pondmaster Hy-Drive Pump 6100 (#20225) Pondmaster Hy-Drive Skimmer Pump 6100 (#20360) 21025 025033210257 Pondmaster Hy-Drive Pump 6600 (#20230) Pondmaster Hy-Drive Skimmer Pump 6600 (#20365) Supreme Hy-Drive Pump 6600 (#40445) Manufacturing impellers often includes trimming on a lathe to achieve balance and/or testing to ensure quality. Consequently, many new impellers appear used. Our impellers are brand new; any wear is due to the manufacturing process. Tip: When changing an impeller, a frequent reason for problems is mineral build up way down inside the impeller housing which causes wear and tear on the impeller and friction against the impeller which can cause overheating and intermittent operation. We strongly recommend cleaning out the well which houses the impeller with vinegar and an old toothbrush to eliminate mineral build up before installing the new impeller.
