Dennerle Nano Filter Extension

Nano filter extension attachable additional filter for nano corner filter. Especially recommended where fish are present. Increases filter a or can be used with phosphate binders or active carbon for short-term additional filtration. Simply fill, rinse (to remove possible residue caused by abrasion in transport) and clip on. For filling with Nano filter medium (bio granules/algae stop/active carbon). 

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