Compatible Filters pack of 12 x compatible foam filter pads, 12 x compatible polycarbon filter cartridges and 3 x bags of 170g compatible biomax suitable for the Fluval U4 aquarium filter.

Regular replacement of the filter foams, cartridges and biomax in your filter will keep your filter running at its best.

Please Note: These are NOT original spare parts - these are compatible filters manufactured by Finest Filters.