Eheim Professional 3/4 Replacement Foam Pads (5 Pack)
Replacement foam pads for all Eheim Professional 3 and 4 canister filters.
Includes 4 - fine filter pads, and 1 - coarse filter pad.
Pre-filtration through the coarse foam filter pad - On account of the large upper 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 increases the lifetime.
Fine filtration - Fine dirt particles are trapped in the fine filter pad before water re-enters into the aquarium.