4 x Compatible Fluval 404/405/406/407 Bio Foam

You are buying a pack of 4 compatible filter foam pads to fit the Fluval 404/405/406/407 range of external filters. These pads are made from exactly the same material as the Fluval originals, just offering a massive saving. The sponges contain the biological cultures, for purifying your water, whilst also mechanically filtering the water by removing particulate waste.

Size (mm): 280 x 72 x 20