5" inch / 125mm Male to 4" inch / 100mm Male Round Ducting Adaptor.
Can be used with HVAC systems, bathroom extractor fans, inline ventilators, cooker hoods, tumble dryers, hydroponics, kitchens or, anywhere else in the apartment, home or office space.
Plastic rigid ducting is perfect for DIY and Trade use.
This is a very practical robust, all in one, solid duct reducer or increaser which can be used when connecting two different, solid or flexible ducts or ducts to ventilators, or vice versa, from small to large, larger to small. Plastic
Perfectly suited for ducting your Tumble Dryer, Bathroom or Kitchen extractor fan, Hydroponics, In-Line Extract Fans, or Cooker Hood.