Collar on circular duct

FBA-ilga-gs-0534392ed885e250ae2441c9b2ec1df0.jpg

FBA - Collars are used to connect a rectangular duct to a circular duct. Screws or rivets can be used for fixing. Duct sealing must be used, which must be glued before fixing collars. The mastic sealant can be used as well.

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