From 200mm

Stepping down from 200mm (approx. 8″) spiral ducting? These 200mm duct reducers do exactly that, stepping down to 80mm, 100mm, 125mm, 150mm, 160mm and 180mm. They’re used throughout commercial and industrial ventilation systems to change duct diameter cleanly between sections. Supplied from our Leicester warehouse, with free UK mainland delivery on orders over £400 ex VAT.

Browse the whole spiral duct reducers category for every other size combination.