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Wyes are the fitting to use when you need to branch off your duct run to a smaller size. The sizes are listed for the inlet side, the discharge side and then the branch side. All wyes are manufactured from the highest quality galvanized steel. They are perfect fittings for maintaining maximum airflow through your system while branching off to multiple locations.
Duct Installation Tips & Tricks — We recommend that you seal the seams with a duct sealant after installation to prevent any air leakage, increase the efficiency of your system and reduce your utility bills. See installation tip for Flexible Duct or Sheet Metal Duct, depending on which type you will be attaching to.