Fluval Flex Foam Filter Insert

Keep your Fluval Flex filter in top condition

At a glance...
  • Filter foam insert for Fluval Flex filters
  • Offers both mechanical and biological filtration
  • Suitable for the Fluval Flex 57l and 123l tanks
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This replacement foam is for the 57l Fluval Flex tank, meaning you can replace the foam as required to ensure your tank is kept clean and in its best condition. These can be replaced as required, when the foam blocks up.

This mechanical media traps particles of dirt within the tank, keeping it looking clearer, and also allows for the growth of bacteria for optimum biological filtration as well.

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