Plastic Ducting & Fittings

Round and low profile plastic ducting.
110x54 low profile equates to 100mm round & 204x60 to 125mm.
Plastic ducting is better than flexible for permanent installations as it looks better and is less resistive to the passage of air.
Reviews
Vectaire Elegance Low Energy DMEV Fan Range
Vectaire Elegance Low Energy DMEV Fan Range
£ 119.00

I've had 2 of these fans for 4 years now, and they are great...