External & HOB Filters



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EHEIM professionel 4+ 250t External Thermo Filter


New product

EHEIM external filter for up to 250L 950L/h

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£ 228.25

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Pro Shrimp's comment: Nothing beats an external filter in terms of filtration. Lots of filtration volume and the option for different filter media makes an external canister filter extremely powerful and versatile. EHEIM filters are Made in Germany, specifically engineered for quality, EHEIM's R&D is second to none. A great network of service and repair points make these filters future proof.

Please note: This is the thermo filter, which is not suitable for marine setups!

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.

There are 3 sizes available for aquariums up to 250, 350 and 600 litres. The models 250 and 350 are also available with an integrated heater as thermo filter (T). In addition, the professionel 350e can be electronically controlled from a PC.

Advantages of the EHEIM professionel 4+ filter

  • Premium class external filters with all the advantages of the professionel 3 series
  • For aquariums from 120 lt to 600 lt
  • Additional control function (Xtender) to counteract blocked filter media and extend intervals between cleaning
  • Square canister for high stability and large filter volume
  • High flow capacity with low energy consumption
  • Adjustable pump output.
  • High performance ceramic axle guarantees quiet running and durability
  • Integrated self priming aid to initially prime the filter
  • Safety hose adapter can only be removed when the valves are closed
  • Top prefilter effectively traps large dirt particles and allows for longer service intervals. Simple to remove and easy to clean.
  • Individually filter baskets with „Easy Clean“ grid
  • Fully equipped with original EHEIM filter media and installation accessories.

EHEIM professionel 4+ 250t


Article No.2371020
For aquariums of about.120.00 l
For aquariums up to approx.250.00 l
Heating approximately210.00 watt
Pump power (50 Hz) per hour of approx.950.00 l
Pumping head approx. (H max at 50 Hz)1.50 m
Power(50 Hz) to12 watt
Filter volume3.50 l
Pre filter volume0.50 l
Container volume7.10 l
Width238.00 mm
Height398.00 mm
Depth244.00 mm
Installation height180.00 cm
Voltage230 volt
Hose Ø Suction side(inside)16.00/22.00  mm
Sea waterno

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