400mm diameter ‘Female’ coupler/Joiner
400mm Galvanised female spiral duct coupler. Joins two sections of spiral duct together, simply by slipping over the outside of a circular spiral ducting section. Manufactured to DW144 spiral ductwork specifications and delivered as one piece.
Note 1: The temperature range of galvanised ductwork is maximum 200 degrees centigrade and 250 degrees centigrade short firing.
Note 2: This part will join two metal ducting lengths together by slipping over the outside of the circular spiral ducts
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