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
Duct Mounted Inline Filter - EU4
Duct Mounted Inline Filter - EU4
£ 41.99

Well made and robust, but it was not use for my application ...