Fluval U1 Foam Pad Insert

The Fluval Foam Pad is a genuine replacement part for the Fluval U1 Underwater Filter. Suitable for freshwater and marine environments, the foam pad captures large particles and debris for effective mechanical filtration. It's custom-sized so it fits perfectly inside the filter chamber to prevent debris bypass. The foam pad has a pore size that allows for efficient water flow, less clogging and long-lasting filtration.