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The SEAL-TITE 1210-2414 is a duct head end cap sized at 24 inches by 14 inches, used to close off the open end of a rectangular duct run. End caps of this type terminate a duct section cleanly, preventing air bypass and maintaining system static pressure at the end of a branch or main trunk. Licensed HVAC technicians and sheet metal installers fit this component during new construction and retrofit ductwork projects where a sealed termination is required.
This end cap is suited for rectangular duct systems in residential and light commercial HVAC applications. It is typically installed at the terminus of a supply or return trunk line where no additional branch connections are planned. The 24-inch by 14-inch profile matches standard duct dimensions common in forced-air systems.
Designed as an OEM-style replacement and new-installation end cap for standard 24-inch by 14-inch rectangular ductwork assemblies.
Installation is typically performed by a licensed HVAC technician or qualified sheet metal installer. Power down the air handling unit and confirm zero airflow before fitting the end cap to the duct opening. Secure the cap with sheet metal screws and seal all seams with UL 181-rated duct sealant or foil tape per local mechanical code requirements. Do not leave unsealed gaps at the cap perimeter, as air leakage at termination points reduces system efficiency.
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