Semi Rigid Flex (3m Long)

Semi-rigid flexible ducting in 3m lengths, stocked in 10 diameters from 100mm to 355mm. Bend it by hand around joists, tanks and awkward corners and it holds the shape — no sagging, no rippling, and a smoother internal bore than conventional flexible duct, which means measurably better airflow on the same fan.

Fitting semi-rigid duct

Form the route as you offer the duct up, supporting longer runs at intervals, and trim to length where the 3m sections meet fans, spigots or rigid duct. Because it keeps a round, open bore through bends, semi-rigid flex is well suited to runs that standard flex would compromise: cooker hood extracts, dryer vents, loft runs to a roof or eaves terminal, and light commercial connections where every pascal of fan pressure counts.

Sizes stocked: 100, 125, 150, 160, 180, 200, 250, 300, 315 and 355mm, matching our spiral ducting and fan spigot sizes. Secure connections with hose clips. Stocked sizes ordered by 3pm are despatched for next-day delivery, with free UK mainland delivery on orders over £400 ex VAT.