The EHEIM professionel 4+ – our best external filter but now with an integrated ‘emergency’ button. EHEIM 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 120L to 250L 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 Pro 4+ External Filter 250 (2271) Specifics EAN 4011708224960 Article No. 2271020 UPC (-) For aquariums of about. 120.00 l For aquariums up to approx. 250.00 l 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) to 12 watt Filter volume 3.50 l Pre filter volume 0.50 l Container volume 6.10 l Width 238.00 mm Height 358.00 mm Depth 244.00 mm Installation height 180.00 cm Voltage 230 volt Standard power plug EUR Packing 1 Part (s) Packing dimensions(Width) 29.50 cm Packing dimensions(Height) 40.00 cm Packing dimensions(Depth) 24.00 cm Hose Ø Suction side(inside) 16.00/22.00 mm Hose Ø Druckseite(inside) 16.00/22.00 mm Freshwater yes Sea water yes For outdoor use no
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