Reducer 300 x 80 mm to 220 x 80 mm for galvanised flat duct

Galvanised reducer rectangular 300x80mm to 220x80mm

This rectangular ventilation duct fitting is suitable for embedding in concrete or other mortar. Rectangular galvanised (in-slab) flat ducts can also be used as above-ground flat ventilation ducts.

This reducer for a galvanised flat duct has a collar connection that slips over a duct. No additional fitting is required.