EHEIM Set of filter pad and filter fleece consist of one pre filter pad and 4 filter fleece suitable for the EHEIM external filters professionel 3 250/350/600 (2071,2073,2075), EHEIM professionel 3e 2074 also for the thermo filters EHEIM professionel 3 250T/350T (2171, 2173).
blue filter pad:
On account of the integrated pre-filter, the particles of dirt are extracted from the in-flowing water before the actual filtration process takes place in the filter baskets, which increase the lifetime.
white filter fleece:Do you have questions about this article ?
Fine dirt particles are trapped in the fine filter pad before water re-enters into the aquarium.