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315mm dia Large Format Circular Diffuser - Silver/Grey

315mm dia Large Format Circular Diffuser - Silver/Grey

DV-PP SILENT Mixed Flow Fan 150

DV-PP SILENT Mixed Flow Fan 150

2mm Wire Rope 150m Reel

2mm Wire Rope 150m Reel

Wires with Carabina 2mm x 2m - Pack of 10

Wires with Carabina 2mm x 2m - Pack of 10

400mm Dia Plate Mounted Axial Fan - Single Phase

400mm Dia Plate Mounted Axial Fan - Single Phase

Ductwrap - Isover ClimCover Alu2 25mm 18m Roll

 Ductwrap - Isover  ClimCover Alu2 25mm 18m Roll

Custom Reducers

Ventilation Ducting  | Fabricated Round Fittings |  Custom Reducers



Please use this product page for any reducers you require that are not standard sizes. We can fabricate to any size you require, although please note we are unable to manufacture anything below 100mm diameter due to the limitations of our machinery.

Manufactured to order from 0.7mm galvanised mild steel.
Custom reducer info

Please use the drop-down menu below to select the size nearest to the larger end of the reducer you require. You will have the opportunity fine tune this size on the following pages. For example, if you require a reducer with a 335mm large end, you should select 350mm from the list below.


Larger end approx. size


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