Description
- Finest-Filters compatible replacement foam and polycarbon filter cartridges are made from the same material as the Fluval originals.
- These filter pads are made to fit the Fluval U4 range of internal filters
- The plain filter sponges contain the biological cultures, biologically and mechanically filtering the aquarium water
- The polycarbon filter cartridges remove small particles from the water, and the activated carbon chemically filters the water of impurities
- Please Note: This is not a Fluval Product. This is a Finest-Filters alternative which serves the same purpose as the original brand.
4 x Compatible Foam and 4 x Compatible Polycarbon Carbon Filter Cartridges to fit Fluval U4 Internal Filter
