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Specifically designed for the Fluval U4 filter, the U4 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

Fluval U4 Bio-Foam Pad Filter Replacement x2

SKU: 15561104883
Sales Tax Included

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