The Fluval U4 is a compact and versatile internal filter for aquariums up to 240 l. This internal filter offers a lot of very helpful features, like the flip top, the separately removable filter media inserts or the easy cleaning system. Offering outstanding 3-stage filtration, increased water movement and vital aeration, Fluval U-Series internal filters are the perfect solution where external filtration is not possible. Now with new and improved design features. The Fluval U4 internal aquarium filter is very comfortable in handling. The outflow can be regulated and it can be mounted vertically or horizontally in the aquarium. Thanks to the flexibility in the positioning of the filter, it can be used as a primary filter in smaller aquariums or as a supplementary filter for larger aquariums. Their unique ability to be placed at the bottom of your aquarium makes it ideal for low water levels.Fluval Aquarium Internal Filter U4+ new sleek design+ new easy grip water control paddle+ new red