The EHEIM activated carbon pad is a open-cell filter foam, fully impregnated with special activated carbon. The foam pad adsorbent to dissolved harmful substances, colorants as well as residues of medicaments. After a short period the carbon will lose its adsorptive power, then a filter pad must be used in the filter. The EHEIM activated carbon pad is suitbale for the external filters EHEIM professionel 3e 2076 and 2078. Package content: 3 pads.Do you have questions about this article ?