FLUVAL U4 Internal Filter, 240 Litre

Best in tank filter I’ve had. Bought as original tank filter went down in my 130l , the pros of this filter are - -super quite , hardly any noise -smart looking / blends in / fits nicely -3 different spray modes (top , bottom or middle for gentle flow) So easy to use / setup and for maintenance The water is really really clear with the active carbon in the filter , it comes with ceramic media too which is a bonus Overall really good filter , highly recommend this in tank instead of external canister

We bought this as the filter we had was not doing a great job water was never crystal clear. Bought the u2 and over night the water was clear. The pictures added to this review are from this weekends water change/aqua scaping. The water got super cloudy due moving the sand about. With in a few hour a noticeable difference. This morning the tank was crystal clear. Out water is dark due to new wood tanens being in the water. But the water its self is beautifully clear. Quiet filter and easy to use. It is quite a big filter. We have ours hidden behind some wood. The three settings for bottom middle or top flow is great to have. Easily removed for filter changes. I cant recommend high enough. You can feel the quality. If you order this get a eu to uk convertor plug as mine came as an eu plug and not a uk one. Wasnt an expensive add. Even that doesn’t take away for how great the filter is

We have just replaced the same one which we had for 5 years ,really good product

I hope that the company that makes this filter will read my review. I am delighted with the filter, it is efficient, quiet, easy to maintain BUT, it has 1 very serious design flaw: The power cable is too short! Most tanks are located on a cabinet or unit some distance off the floor, Add to that the possibility of an accessible socket may be more than 1m from the tank and I would think it fair to say that a 2m power cable length would be a minimum requirement. I highly recommend this filter but unless the manufacturer supplies it with a longer power cable, you will need to buy an extension cable. For this reason only, I have given four stars instead of 5

This is about the 3rd or 4th I've bought from Fluval. They're the company I trust for a reliable yet quiet filter. Bob my goldfish loves a nice clean tank as you can tell! Not cheap but deffo worth the money. Fabulous sellers got this to me with same day delivery as my old one packed up. Thank you for a great service all round xx

Tldr - damaged box, dusty filter, EU plug. Don't buy if you are in desperate need as will likely end up returning it. Bought one 5 years ago that has finally packed in. Needed a lther filter and as this worked great ordered the same thing. 1st one delivered and the package was damaged, but hey never mind these things happen. Took filter out of box...and it was covered in dust. Again, never mind, I need it and will give it a clean. Thats when I noticed it has an EU plug. Wtf! Returned straight away and decided to buy it again - thinking I must have been unlucky. Managed to get same day delivery - result! Nope, it turned up and box was damaged again, but not as bad as the one I just returned. Took filter out box, was dirty again, but not as bad. Then checked the plug....EU socket. Now tank been without a filter for 2 days. Now going to pets at home and getting what ever I can.

THIS IS A GREAT SIMPLE TO USE FILTER THAT SEEMS TO DO THE JOB WELL

Bought to replace a JBL CristalProfi on the strentgh of other reviews on here. It's being used on a Fluval Roma 125l tank, which in theory this U4 filter should be more than enough to handle. Whilst installing and cleaning is straight forward and inexpensive (replacement filters are cheap and easy to come by), I've been disappointed with the water clarity of the tank, despite regular water changes. Using on the middle or bottom filter settings the tank clouded up relatively quickly, so I've always had to use on the top and most powerful setting. More recently the filter completely stopped and needed a jolt to get it running again. Whilst it does an OK job my previous JBL filter produced clearer water and for longer, but was more time consuming to replace the filters and media. Will look into upgrading to an external filter next time.

Acquistato in sostituzione del filtro integrato del mio Askoll Pure XL 94 litri. Con i pesci Oranda, che sporcano moltissimo, il filtro integrato nel coperchio non era sufficiente a garantire una buona filtrazione. L’acqua era sempre torbida e piena di impurità. In più il precedente, essendo integrato nel coperchio di plastica, era estremamente rumoroso. Questo Fluval è incredibile. Estremamente silenzioso, arriva completo di tutti materiali filtranti, ha l’uscita del flusso regolabile: - uscita dal basso - uscita centrale più distribuita - uscita dall’alto con valvola Venturi per l’ossigenazione (più rumorosa per via delle bollicine) Tutti i problemi di sporcizia nell’acqua si sono risolti nel giro di due giorni. In più la manutenzione sembra semplicissima in quanto il filtro è apribile dall’alto e i materiali sono facilmente estraibili. Consiglio a chiunque cerchi un filtro estremamente silenzioso ed efficace con un’ottima portata d’acqua senza necessariamente creare troppe correnti. Prezzo più che adeguato.

Ho appena acquistato un nuovo filtro per il mio acquario e devo dire che sono davvero soddisfatto dei risultati ottenuti. Questo filtro funziona in modo eccellente, garantendo una pulizia costante dell'acqua senza alcuno sforzo. La cosa che più mi ha colpito è la sua silenziosità. Rispetto al mio vecchio filtro, questo è praticamente inudibile. Non solo è piacevole per me non sentire costantemente il rumore del filtraggio, ma anche la mia tartaruga sembra apprezzare la tranquillità. Posso dire con certezza che il mio animale si sente più a suo agio senza interferenze sonore fastidiose. Inoltre, la facilità di pulizia di questo filtro è davvero un punto a suo favore. Basta rimuovere il meccanismo di filtraggio e sciacquarlo con acqua corrente per eliminare i residui accumulati. Non è necessaria alcuna procedura complicata o l'uso di prodotti chimici. È un'operazione rapida e indolore che mi permette di risparmiare tempo e fatica. Ma la cosa migliore di tutte è che grazie a questo filtro, posso cambiare l'acqua del mio acquario con meno frequenza rispetto al filtro precedente. La qualità dell'acqua rimane costantemente alta e pulita, senza dover fare interventi continui. La mia tartaruga sembra molto più felice e il suo ambiente è molto più salubre. Sono davvero contento di aver acquistato questo filtro per il mio acquario. Lo consiglio a tutti coloro che cercano un prodotto efficiente, silenzioso e facile da pulire. Non ne rimarrete delusi!

Super silent, super effective. I have no complaints !

I had a cloudy aquarium with a filter priced 400 rs. It had to run for a week to make the water clear and the water flow was strong which made the fish hard to swim on their own. But this filter does magic. With in some hours after installation, the water became crystal clear. The flow is very smooth too.

Filtro bonisimo, muy fuerte. Muy fácil limpiarlo.