Eheim 2217 Carbon Set of 3 Sponges for Aquarium

Cazaar

Eheim Carbon Filter Pads Classic 250 350 600 Genuine Replacements Genuine Eheim replacement filter foams & pads Includes 3 foam pads Designed to fit the following Eheim external filters... Eheim Classic 250 2213010 Eheim Classic 350 2215010 Eheim Classic 600 2217010

Amazon

Specially treated carbon cartridges Removal of harmful chemical substances (chlorine, residues of medications etc.) Use only for a limited period (4-6 weeks)