Compatible Oase Biomaster External Filter Foam 20ppi Coarse Blue / 30ppi Fine Red

Finest-Filters replacement filter foams compatible with the Oase Biomaster external aquarium filters.

We stock both the coarse 20ppi blue foam and fine 30ppi red foam.

Our filter foam is totally aquatic safe, and is not treated with any chemicals, so it is guaranteed to not harm your fish.

We also offer a cost saving pack consisting of both foams. Please select the option required from the drop-down menu when ordering.

Please Note: This is not an original Oase product, it is a Finest-Filters alternative intended to perform the same function.