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 4+ 250/350/600 (2271,2273,2275), EHEIM professionel 4e + 2274 also for the thermo filters EHEIM professionel 4+ 250T/350T (2271, 2273).
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.