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The SEAL-TITE 217-05 is a 5-inch T-joint crimp-on run fitting designed for use in flexible duct and sheet metal duct system connections. This fitting allows a branch takeoff to run inline with the main duct, creating a T-configuration secured by a crimp-on connection method. Constructed in 24 gauge, it provides the rigidity and structural integrity needed for air distribution systems in both new construction and retrofit installations. HVAC technicians and sheet metal installers are the primary trades that work with this type of fitting.
This fitting is suited for residential and light commercial HVAC duct systems where a 5-inch T-joint run connection is required. It is used when a supply or return branch must be pulled from an existing duct run without the use of flanged or slip-fit connections. The crimp-on design allows for a secure, low-profile joint that integrates cleanly into standard round duct configurations. It is appropriate for installations where duct sizing, layout, and air balancing require a dedicated inline branch point.
Designed as an OEM-style replacement or new-installation fitting for 5-inch round duct systems in residential and light commercial HVAC air distribution applications.
Installation should be performed by a qualified HVAC technician or sheet metal installer. Power down the air handler or furnace and verify the system is not pressurized before fitting installation. Crimp-on fittings typically require sheet metal crimping tools and aviation snips for proper fitment and sealing. Seal all joints with listed duct sealant or UL 181-rated tape in accordance with local mechanical codes.
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