Specifically designed for the Fluval U3 & U4 filter, the Bio-Foam Pad captures large particles and debris for effective mechanical filtration.
- Mechanical filter media
- Fits perfectly inside the filter chamber to prevent debris from escaping
- Ideal pore size allows efficient water flow, less clogging and long-lasting filtration
- Suitable for freshwater, saltwater or reptile environments
- Convenient 2-pack format