Powerful performance, optimal energy efficiency, pleasant operation, intake assistance, safety hose adapter, and many other advantages are inherited from the professional 3 series. The highlight is the new "Xtender": When the filter media becomes dirty and the water flow decreases, you can simply adjust it using the control knob. This way, you don't have to intervene immediately and gain a few extra days until the next cleaning of the filter media. The biological filtration remains intact due to the redirected water flow. Visually, the professional 4+ comes in a new design. The filter is presented in a modern anthracite gray and is supplied with matching hoses, pipes, etc.

Advantages of the Eheim professional 4+ filters: Top-class external filter with all the benefits of the professional 3 series for aquariums from 120 to 600 liters; additionally equipped with a control function to extend the service life when the filter media is dirty (Xtender); square base shape for large filter volume and high stability; high flow rate with very low energy consumption; pump performance adjustable; whisper-quiet operation and extremely long lifespan due to high-performance ceramics in the pump drive; intake assistance for quick filling of the filter system; safety hose adapter that can only be detached when valves are closed; large pre-filter retains coarse dirt and ensures long service life of the biological filter material; easy to remove and clean; individually removable filter baskets that can be filled as needed with "Easy Clean" cleaning grid; fully equipped with original Eheim filter media and installation accessories.