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Metal Increaser And Decreaser

Dundas Jafine’s Aluminum Increaser and Decreaser are used to connect 3” – 4” ducts together. They are offered with either a 3” crimped end for increasing the duct size to a 4” or a 4” crimped that will allow you to decrease the duct size to 3” in diameter.



Product CodeProduct DescriptionSizePack QtyPackaging Type
RA34Metal Increaser3" - 4"12Bulk
RA43Metal Decreaser4" - 3"12Bulk

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