Which diameter should you choose? Measure the inside of your duct, from edge to edge through the centre: your measurement is the diameter to order (Ø80mm, Ø100mm, Ø125mm, Ø150mm, Ø160mm or Ø200mm).
Set of three filters designed for Aldes Deepfly Cube 300 and 370 dual flow units: two G4 pre-filters that stop midges and dust, and one F7 filter that refines the supplied air and protects the heat exchanger. The airflow and energy savings of your Deepfly depend directly on how clean these filters are: check them every six months and replace them as soon as they turn grey. Top Filter manufacture, formats matching the original slots, tool-free replacement.
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