315mm dia Large Format Circular Diffuser - Silver/Grey
DV-PP SILENT Mixed Flow Fan 150
2mm Wire Rope 150m Reel
Wires with Carabina 2mm x 2m - Pack of 10
400mm Dia Plate Mounted Axial Fan - Single Phase
Ductwrap - Isover ClimCover Alu2 25mm 18m Roll
Due to a high volume of orders there will be a 2 week delay in all custom manufactured ductwork. This includes all rectangular ductwork, grille boxes, and fabricated round fittings. This does not affect our stock items. We apologise for any inconvenience may cause.
Non-return dampers have traditionally been installed between two lengths of duct, rather like a coupler: new in duct dampers can be inserted directly, simplifying installation.
Lightweight aluminium blades on a light steel spring maintain the damper in the closed position when no air is flowing, preventing wind/drafts from flowing back through the duct. These dampers feature seals and rolled edges.