Fluval U3 Submersible Filter Foam Blocks

The Fluval U3 Foam Block dislodges large particles to provide effective mechanical filtration, which is the critical first step in the filtration process.

Custom designed, the Fluval U3 foam block fits snugly into the filter chamber to keep debris out.

The pore size prevents clogging and allows for consistent water flow and long-lasting filtration.

Main characteristics:

• Block dislodging large particles to ensure effective mechanical filtration
• Custom design so the foam block fits snugly into the filter chamber and keeps debris out.
• Pore ​​size that prevents clogging and allows for consistent water flow and long-lasting filtration.