| The EHEIM preliminary filter ist for trapping particles of coarse dirt already in the suction area. This prevents the filter media in the canister from becoming contaminated too quickly. The cleaning intervals of the canister filter are prolonged. The prefilter can be occurred in the ground reason. A washable filter cartridge is contained in the scope of supply. The preliminary filter is expandable, 2 modules can be installed in the aquarium so. A distance spacer is available for bridging large aquarium frames. |
 |