Eheim Professionel 4+ External Filter Filtration & Aeration and toxic substances to maintain

and toxic substances to maintain crystal-clear water

Use double dose at start of season or when establishing a new pond/filter

aquarium or sump

The innovative self-repair system

as there is no need for frequent replacement

Eheim Professionel 4+ External Filter Filtration & Aeration and toxic substances to maintainThe EHEIM professionel 4+ our best external filter but now with an integrated emergency button. We have adopted the many advantages of the professional 3 series powerful performance, optimal energy efficiency, quiet operation, priming aid, safety hose adapter but we have also improved the technology by incorporating the new Xtender button. In the event the output is reduced due to the fine filter media blocking, the button can be adjusted to redirect