The Fluval U1 Underwater Filter Foam Pad provides the essential first stage of filtration by capturing large particles and debris.

Custom-made to fit snugly inside the Fluval U1 filter chamber, it prevents debris bypass and maintains efficient water flow.

The pad's optimized pore size supports steady water movement, minimizes clogging, and offers long-lasting filtration between maintenance cycles.

It is suitable for freshwater, marine, and reptile aquariums, helping keep water clear by removing particulate waste before it reaches the biological media.

Dimensions: 60 x 85 x 15 mm. Pack of 2 pieces. Specially shaped to fit Fluval U1 filters.

Use during routine filter upkeep to preserve performance and consistent flow. The two-piece design ensures coverage even while replacing one pad.