Marineland Eclipse Rite-Size H Replacement Filter Cartridge, 12-Pack
Save money buying this BULK-size package that consists of four Marineland Eclipse Rite-Size H Filter Cartridge 3-Packs (12 filters total). The Rite-Size H is for the Eclipse 2 and Eclipse 3 Aquarium filtration systems.  It also is the replacement for Marineland Glass Systems 25, 29 & 37. For best best results, change the filter cartridge every 2-4 weeks.