Compatibility:
Bio-max Aquarium Filter Media Replacement for Fluval U Underwater Filter

Water Purification:
Utilizes premium bio ceramic media shaped filter media. Its composite ring structure provides an expansive surface area to adsorb impurities, helping maintain stable water quality. u3 filter replacement Creates crystal-clear water and ensures the healthy operation of the aquatic ecosystem

High-Efficiency Filtration:
for fluval bio media ring-shaped porous structure offers a vast surface area to capture larger particles and debris, achieving efficient mechanical filtration. Its pore size design ensures smooth water flow, minimizes clogging, and delivers long-lasting filtration performance

Mesh Bag Dimensions:
Length: 3.7 inches/9.5 cm
Width: 5.7 inches/14.5 cm
Each bag about 4.6oz
Note:
Manual measurement, please allow slight errors on size.
The color may exist a slight difference due to different screen displays.

Easy Installation:
Remove the middle filter chamber from the U2/U3/U4-series submersible filter. Rinse the new bio-media with tap water or aquarium water, then fully insert the media into the filter chamber.