EheimFilter Classic 250 Internal Filter for Aquarium 440L/h

I bought this filter 15 years ago still runs 24/7 like nothing like it i do love it after these yearswill i am speech less i am buying the new one hope it will last as my old one

Glöm inte att installera av/på ventiler/kranar

Ohne Schnickschnack und er macht seine Arbeit gut! Pumpenkopf mit Silikon gefüllt und er ist fast lautlos geworden! Befüllen geht ganz leicht solange der Auslauf zu Anfangs über der Wasseroberfläche gehalten wird. Kann ich empfehlen!

Using since 1 month till now satisfied

Muy buen filtro para acuario. Mucha capacidad de succión a un precio razonable dada la calidad del producto.

The reviews on this item are pretty mixed. However I decided to give it a go, as the price is incredibly interesting (it's usually sold at more than twice this price). The filter comes with an european plug, so it needs an adapter for UK sockets. Also the filter media will be needed, as this filter comes only with the canister, the rough sponge and the fine sponge. Ceramic bio rings and porous material are quite cheap though.The design and the efficiency are superb. The filter does not prime automatically but this is not a big problem as this Eheim needs to be cleaned only every three to five months, depending on how stocked is your tank. While operating it doesn't emit noise and the flow is reasonably powerful. Indeed for my 40l tank it was too strong, and unsuitable for my sand substrate and my live stock, which doesn't appreciate strong flow; all I needed to do to slow the flow was to put replace the filter's six blades impeller with a three blades impeller and direct the spraybar in an appropriate way.As this Eheim filter is the successor of an old Boyu EF-05, no need to say that the results in terms of water clarity are more than satisfying. I will soon buy a double tap connector for the intake tubing, that will help the maintenance/priming of the unit when needed.To summarise, I recommended to buy this filter for:• price: at 30£, this costs less than half of the RRP value. Coming without media, you will need to buy it separately if not already in your possession. However this still makes it convenient. Same matter for the EU adaptor, that costs around 1£.• no noise: I'm using this filter less than two meters away from the bed were I sleep and it's barely audible.• efficiency: the filter clears and moves the water efficiently. If however you own a small tank (for example a 10gal/40l tank) you might find the flow too strong, depending on the preferences of your livestock or on how heavily planted is your tank and this might force you to modify the filter, like I did using a three blades impeller.• brand: Eheim is a well-known and well-reputated company, standing at this price this beats any Chinese filter out there, that might save you 10-20£ but that won't be helpful and efficient in the long run. All kind of accessories are also available thanks to the popularity of Eheim products.The bad points are - according to my opinion and to the use I do of the unit - imperceptible, however I reckon useful to include them in my review:• no automatic priming. Easily remediable through the use of a double tap quick connector on the intake hose.• flow might be too strong for small tanks. I would not recommend it on tanks smaller than 10 gallons.• green tubing might be unpleasant for some people.• comes with an european plug and without media.