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).
Flexible duct 125 mm in diameter and 3 metres long, lined with acoustic insulation that reduces unit noise before it reaches the living areas. It is the obvious choice when the motor is close to bedrooms or when the system passes through light partitions: the duct bends by hand, is secured with a Ø125 clamp and connects to standard valves and ceiling boxes. The discreet black outer sleeve is easy to hide in a loft. For hot air extraction, prefer an aluminium duct; this insulated model is intended for standard ventilation systems.
Choose the right diameter
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).
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