They help the filters collect debris, food, hair and sediment. Having activated carbon helps absorb water impurities, ensuring your cat or dog is drinking fresh and clean water.

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The Catit Foam Cartridge for Catit Design Fresh & Clear Fountain is a replacement Carbon Filter for Catit Design Cat Drinking Fountain. (Both model #55600 and #50053)

They help the filters collect debris, food, hair and sediment. Having activated carbon helps absorb water impurities, ensuring your cat or dog is drinking fresh and clean water.