Advantages of the EHEIM professionel 4 filterPremium class external filters with all the advantages of the professionel 3 seriesAdditional control function (Xtender) to counteract blocked filter media and extend intervals between cleaningSquare canister for high stability and large filter volumeHigh flow capacity with low energy consumptionAdjustable pump output.High performance ceramic axle guarantees quiet running and durabilityIntegrated self priming aid to initially prime the filterSafety hose adapter can only be removed when the valves are closedTop prefilter effectively traps large dirt particles and allows for longer service intervals. Simple to remove and easy to clean.Maintainence and flow rate indicatorIndividually filter baskets with „Easy Clean“ gridFully equipped with original EHEIM filter media and installation accessories.The 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 the flow. The biological filtration is main-tained and the service interval can be extended by a few days.EHEIM filters are made from the best materials, precise workmanship and extensive know-how that guarantees top quality, reliability, and durability.EHEIM has contributed greatly to the popularity of aquariums throughout the world more than 40 years ago, with the invention of the first aquarium suction filter (canister filter) by the engineer Gunther Eheim. By doing this, he created better conditions for the hobby. Constant good water quality for longer period of time and easier maintenance increasingly makes aquarium an attractive piece of interior furniture in many households.
