Fluval Biological Cleaner for Aquariums, 8.4-Ounce

Fluval Flex Foam Filter Block, Replacement Aquarium Filter Media, A1375

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Replacement black foam to insert in your Fluval flex 15G. This foam is for the Fluval flex aquariums.

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Product Review

Replacement black foam to insert in your Fluval flex 15G. This foam is for the Fluval flex aquariums.

Mechanical filter media traps large particles and debris
Simple and easy replacement process
Equipped with convenient handle for easy handling
Specifically designed for the Fluval Flex aquarium series
Includes one replacement foam filter block

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Fluval Biological Cleaner for Aquariums, 8.4-Ounce