Fluval U4 Filter Foam Pad

Product Description

Fluval U4 Bio-Foam Fluval’s Bio-Foam has been designed for both mechanical and biological filtration, the complex foam structure of the Bio-Foam allows long lasting effective filtration and ideal surface area for beneficial bacteria. The U4 Bio-Foam is specifically designed for the Fluval U4 Internal Filter, it’s advisable the foam should be replac...