Fluval Foam Filter Insert U4

Dirt particles and impurities must be reliably filtered out of the aquarium. Otherwise, the water will become sludgy and cloudy. The Fluval Foam Filter Insert catches large dirt particles such as faeces, feed and plant residues from the water. The pore size enables an effective water flow and thus guarantees full mechanical and biological filtering. The filter insert is available in the following variants: U1, U2 U3, U4.