Plastic Round Fittings Duct Pipe Reducer-Ducting Pipe Multi Reducer Extractor Fan Ventilation Hose Connector Adapter 80mm 90mm,100mm,110mm,120mm,130mm,140mm,150mm,160mm 170mm,180mm,190mm 200mm White by Amazon.co.uk

• Universal reducer for ventilation systems, diameter 80/90/100/110/120/130/140/150/160/170/180/190/200 mm gradually decrease or increase

• Durable material: Designed and intended for use in the ventilation systems in both the inner and outer of the building, made of high quality material, which is resistant to external factors (high quality PVC plastic), no rust

• It can be used with HVAC system: bathroom exhaust fan, built-in ventilator, range hood, tumble dryer, hydroponic system, kitchen, or any other place in the apartment, home or office.

• Large temperature range the use of (from -20 °C to + 65 °C) with a quiet, comfortable all year round and high efficient ventilation.

• All into one: This is a very practical solid solid pipe reducer or diameter increaser, which can connect two different solid pipes or flexible pipes or pipes from small to large, from large to small to ventilation Machine-time use, and vice versa