Fluval U-Sereis Underwater Filter Foam Pads,Foam Pad For U2 Filter (2 Pack),Each,A486

The Fluval Foam Pad captures large particles and debris for effective mechanical filtration, the crucial first stage in the filtration process. Custom-sized, it fits perfectly inside the filter chamber to prevent debris bypass. The foam pad has a pore size that allows efficient water flow, less clogging and long-lasting filtration. Suitable for freshwater, marine or reptile environments.