FLUVAL Bio-Foam U2 (x2). Replacement sponge specially designed for the Fluval U2 filter. The U2 Bio-Foam Pad captures large particles and debris for efficient mechanical filtration.

• Mechanical filter media
• Fits perfectly in the filter chamber to prevent debris escape
• The ideal pore size allows for effective water flow, less clogging, and long-lasting filtration
• Suitable for freshwater, saltwater, or reptile environments
• Package of 2 pieces