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The Fluval 1+ Underwater Filter Replacement Foam by Fluval comes as a 2 pack containing the standard filter medium for the Fluval Underwater Filter.
Fluval Underwater Filters have been designed to incorporate filter media that have a large surface area which ensures efficient cleaning of the aquarium water and maximizes the colonisation of beneficial bacteria.
Fluval Underwater Filters have been designed to incorporate filter media that have a large surface area which ensures efficient cleaning of the aquarium water and maximizes the colonisation of beneficial bacteria.