Eheim Coarse Blue Fliter Pads for ECCO Filter:
Maintain your ECCO Canister filter’s performance with Eheim filter pads. The pads are specially designed to provide mechanical, chemical, and biological filtration. For use with Eheim ECCO canister Filter Models 2232, 2234 and 2236 OR with Eheim ECCO Pro Canister Filter Models 130, 200 and 300.
Have an adsorptive effect, trapping dissolved aquarium pollutants on the filter surface and removing them from the water column.
The pad maybe used up to three times.