Hagen Fluval U4

<p>the Fluval U4 is a high-performance, convenient, internal filter which provides 3

level water filtration, ideal for use in freshwater and marine aquariums.

Due to its mechanical, chemical and biological properties of the filter Fluval U4 creates

crystal clear healthy aquarium water. Filters manufacturer Fluval simple, quiet and

efficient service.</p>
<p>the First level: Sponge removes larger particles.</p>
<p>Second layer: cotton/ugolin