Hagen Fluval U3

<p>Fluval U3 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 filter Fluval U3 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