Fluval FX4 FX5 FX6 Bio Foam + Plus Twin Pack External Filter Media Sponge
These are genuine Bio Foam Pads for the Fluval FX5 and FX6 External Filters. Fluval Bio Foam Pads are specially designed for Fluval FX5/6 High Performance Canister Filters. Genuine Fluval Spare - dont accept imitations!