DENNERLE Nano FilterExtension

Attachable additional filter for the Nano corner filter and the corner filter XL. It can be filled with Nano filter materials.

Especially recommended for fish stocking.
Increases the filter performance or can be used for short-term additional filtering with phosphate binder or activated carbon.

Simply fill, rinse (due to possible abrasion during transportation) and attach. For filling with nano filter media (Bio-Filter Granulate/Algae Stop/Active Carbon).