These dual-purpose replacement sponges offer both mechanical and biological filtration, making them suitable for a variety of aquatic settings, including both freshwater and saltwater tanks.

The pre-filter sponge is designed to effectively remove dirt and debris from the water, while also maintaining optimal water circulation, ensuring a clean and well-balanced aquarium environment.

Included in each package are 12 white filter pads, providing you with a sufficient supply to keep your aquarium's filtration system operating efficiently.

Dimensions are approximately 235mm x 64mm x 17mm. This is an aftermarket product and not an authentic Hagen FLUVAL foam. The sponges are designed to trap particles and debris, enhancing biological filtration. They are suitable for both freshwater and marine environments and are designed to provide efficient water flow with minimal clogging, ensuring long-lasting filtration.