HAWAIIAN MARINE IMPORTS Eheim Fine Filter Pads for Ecco Canister Filters, 3 Filters Per Pack For use with the Eheim Ecco Models: 2232, 2234, and 2236 For use with the Eheim Ecco Pro Models: 130, 200, and 300 Porous material traps large and small dirt particles Good colonization conditions for bacteria cultures Reusable several times over, To clean just rinse and squeeze out