The Elive AquaDuo filter cartridges are designed with the health of your fish in mind. They help to create the perfect environment for your aquatics for longer than most other filters. Compatible with Elive AquaDuo 10 and 20 filters, Elive recommends changing cartridges every 2-4 weeks for optimal results. AquaDuo Filter Cartridges are linkable for use in filters that require multiple cartridges.
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