EHEIM activated carbon pad (3 pcs.) f. classic 150

Fine and coarse activated carbon filter pads for
adsorptive filtration

For adsorptive filtration - also for removal of
harmful chemical substances (chlorine, remains of medical treatments etc.) -
there are special activated carbon fine and coarse filter pads as a filter
insert. Adsorptive filtration is usually only necessary in the start-up phase
of the aquariums or after use of medication. The filter media should only be
used for a short time (ca. 4 weeks) and then removed or replaced.