100mm
What’s available in 100mm
Use this page to shop our Nordfab QF ducting and fittings by diameter: everything we sell in 100mm (≈ 4″) is gathered here, including branches and cut-ins, dampers, accessories and adaptors.
Alpha Air is a Leicester-based supplier of commercial and industrial ventilation equipment. Lead times are shown on each product page.
Prefer to work in inches? The same products are listed under the 4" Nordfab size.
Showing 1–16 of 52 results
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Nordfab QF Cut In – 100mm × 100mm – 30° – Galvanised
£34.49 + VAT Add to basket -
Nordfab QF Cut In – 100mm × 125mm – 30° – Galvanised
£34.49 + VAT Add to basket -
Nordfab QF Cut In – 100mm × 140mm – 30° – Galvanised
£38.55 + VAT Add to basket -
Nordfab QF Cut In – 100mm × 150mm – 30° – Galvanised
£34.49 + VAT Add to basket -
Nordfab QF Cut In – 100mm × 160mm – 30° – Galvanised
£34.49 + VAT Add to basket -
Nordfab QF Cut In – 100mm × 180mm – 30° – Galvanised
£34.49 + VAT Add to basket -
Nordfab QF Cut In – 100mm × 200mm – 30° – Galvanised
£34.49 + VAT Add to basket -
Nordfab QF Cut In – 100mm × 224mm – 30° – Galvanised
£34.49 + VAT Add to basket -
Nordfab QF Cut In – 100mm × 250mm – 30° – Galvanised
£34.49 + VAT Add to basket -
Nordfab QF Cut In – 100mm × 300mm – 30° – Galvanised
£34.49 + VAT Add to basket -
Nordfab QF Cut In – 100mm × 315mm – 30° – Galvanised
£34.49 + VAT Add to basket -
Nordfab QF Diverter RGSM Manual 2 and 3mm /FB – 100mm – 45° – Mild Steel
£368.33 + VAT Add to basket -
Nordfab QF Double Branch – 100mm × 100mm × 100mm × 100mm – 30° – Galvanised
£84.26 + VAT Add to basket -
Nordfab QF Reducer – 100mm × 80mm – Galvanised
£28.34 + VAT Add to basket -
Nordfab QF Silencer w/o Baffle – 100mm – 0.6m – Galvanised
£169.89 + VAT Add to basket -
Nordfab QF Spark Trap Inline – 100mm – Galvanised
£281.09 + VAT Add to basket