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).
Three-piece maintenance set compatible with Atlantic Optimocosy HR and Sauter Panega units: two G4 coarse filters for the air inlets and one F7 fine filter to protect the exchanger and the supplied air. The F7 catches pollen and fine particles — useful in urban areas or near a main road. Replacing the filters on time restores the unit's nominal airflow and heat recovery efficiency, and avoids the smells of a clogged system. Top Filter manufacture, original cut.
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