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Galvanised collar ring with diameter Ø 125mm and height 90mm.
This collar ring is suitable for embedding in concrete or other mortar.
Galvanised (in-slab) flat ducts can also be used as above-ground round ventilation ducts.
An extensive range of ventilation fittings is available with this item.
Size Ø 125mm
|Galvanised flat ducts and fittings 165x80
|Manufacturer's item number