Fluval Foam Filter Blocks are suitable for the 104/5, 204/5 and 404/5 Fluval filters.
The foam's porous surface traps dirt and debris, leaving the water clean and clear. Each foam is custom made to fit perfectly, to stop any water by passing the filtration system.
The material also promotes biological filtration as the surface is ideal for bacteria to colonise, creating a natural process to keep your tank clean, clear and healthy.
Match up the relevant Foam Block with the corresponding Fluval Filter for a perfect fit and a beautifully clean aquarium.
- Suitable for various Fluval filters
- Custom fit to each filter
- Collects and traps dirt and debris
- Promotes biological filtration