From 14 inch
These 14 inch spiral duct reducers connect 14 inch (approx. 14″) diameter spiral ducting to a smaller duct size, stepping down to 11 smaller diameters, from 12½ inch right down to 4 inch. Reducers are the standard way to drop duct diameter through a system as airflow splits off along the run, keeping air velocity where the design needs it. All 11 options on this page reduce from a 14 inch end. Orders over £400 ex VAT qualify for free UK mainland delivery, and stocked items ordered by 3pm are sent next-day.
Need a different starting diameter? Browse the full range of spiral duct reducers.
Showing all 11 results
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Reducer – 14 inch to – 4 inch
£27.52 + VAT Add to basket -
Reducer – 14 inch to – 5 inch
£27.18 + VAT Add to basket -
Reducer – 14 inch to – 6 inch
£23.30 + VAT Add to basket -
Reducer – 14 inch to – 6 inch
£20.58 + VAT Add to basket -
Reducer – 14 inch to – 7 inch
£22.20 + VAT Add to basket -
Reducer – 14 inch to – 8 inch
£22.96 + VAT Add to basket -
Reducer – 14 inch to – 9 inch
£22.54 + VAT Add to basket -
Reducer – 14 inch to – 10 inch
£17.74 + VAT Add to basket -
Reducer – 14 inch to – 11 inch
£18.00 + VAT Add to basket -
Reducer – 14 inch to – 12 inch
£14.40 + VAT Add to basket -
Reducer – 14 inch to – 12½ inch
£15.52 + VAT Add to basket