Marineland Rite-Size A Cartridge Refills - 5 pack (4 2)

Each cartridge is pre-assembled
Meets the highest standards of water purification and operational ease
Rite-Size A fits Penguin 100B, Mini, and 99B.Rite-Size B fits Penguin 150B, 110B, and 125B.Rite Size C fits Penguin 200B, 350B, 170B, and 330B.
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