Our office and depot is closed until Monday 5th January 2026. Orders placed during the holiday period will be processed once we return.



100mm ducting

Our 100mm (4 inch) round plastic ventilation ducting is suitable for extraction in bathrooms or any ventilation system that has low flow rates.

Internal Diameter : 100mm. 

Lengths Available: 2 metre, 1 metre & 0.5 metre.

We stock the following fittings for our 100mm plastic ducting.

  • 100mm 45 degree bend
  • 100mm 90 degree elbow bend
  • 100mm joiners or couplers
  • 100mm equal tees
  • 100mm plastic flanges
  • Duct reducer 125mm to 100mm
  • Duct reducer 150mm to 100mm
  • Duct reducer 100mm to 80mm

A suitable airtight tape, duct tape or ventilation mastic should be used to seal the 100mm duct joints. We also stock 100mm insulated flexible ducting.

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