Juwel Eccoflow Pumps are the latest generation of highly-efficient, silent circulation pumps. In all Eccoflow Pumps, the impellers are on a double bearing system and are specially tailored to the individual motor rating. This is what creates the extra operating quietness and low power input of the Eccoflow Pumps. If you use the ceramic axles, which are available separately, Juwel Eccoflow Pumps are also perfect for use in saltwater aquariums. The bypass flow principle means that the impeller chamber is constantly and automatically cleaned. As you would expect, the Juwel Eccoflow pumps comply with the highest safety standards and are TÜV/GS certified. Juwel Eccoflow Pumps are available in performance categories 300, 500, 600, 1000 and 1500lph and are perfect for use in the Juwel Filter System. Available sizes:- Juwel Eccoflow 300 Pump [85751]- Juwel Eccoflow 500 Pump [85752]- Juwel Eccoflow 600 Pump [85754]- Juwel Eccoflow 1000 Pump [85756]- Juwel Eccoflow 1500 Pump [85758]- Juwel Eccoflow SeaSkim Pump [85759]