Marineland Eclipse Rite-Size G Replacement Filter Cartridge, 12-Pack
Save money buying this BULK-size package that consists of four Marineland Eclipse Rite-Size G Filter Cartridge 3-Packs (12 filters total). The Rite-Size G is for the Eclipse System Twelve and Eclipse 1 Aquarium filtration systems. For best best results, change the filter cartridge every 2-4 weeks.