Are you looking for a reliable sponge for your aquarium filtration? This particular sponge is an essential accessory for FX4, FX5, and FX6 filters, ensuring that the water remains clean and healthy for your fish and plants.

• High-quality material that guarantees effective filtration action.
• Compatible with specific Fluval filter models, providing easy replacement.
• The sponge's dimensions are ideal for the optimal operation of the filter.

This sponge is designed to support the healthy development of your aquarium's ecosystem while facilitating filter maintenance. By using it, you can be confident in the water quality in your aquarium.