EFU-CR Ceramic Rings for Reaction Canister

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Ceramic Rings Replacement for JBJ Reaction Canister UV Filter - EFU-CR

If you're looking for ceramic rings for your 25, 35, or 45 EFU reaction canister filter, look no further. These rings promote the growth of beneficial bacteria that break down harmful ammonia and nitrate and nitrite. They can be used with freshwater or saltwater aquariums.

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