HQRP 4-Pack Fine and Coarse Media Filter Pads for Eheim Classic 2217/600 Canister Filter Coaster HQRP&reg; 2 White Fine Media Filters + 2 Blue Coarse Media Filters plus HQRP&reg; Coaster; Reusable several times over. To clean just rinse and squeeze out; For fresh and sea water; 100% Compatible with Original filter; 2 weeks DOA replacement warranty!