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The SOUTHWARK METAL 1110298-24G is a sheet metal end cap designed to close off the open end of a rectangular duct section measuring 29 x 8 inches. End caps of this type are used to terminate ductwork runs, block unused trunk openings, or seal off branch takeoffs that are no longer active. This fitting is a standard component in forced-air HVAC duct systems and is typically installed by sheet metal contractors or licensed HVAC technicians during new construction or duct modification work.
This end cap fits rectangular duct with a 29 x 8 inch opening. It is suited for residential and light commercial forced-air distribution systems where a clean, secure termination of a duct run is required. Installers use end caps like this one when capping off plenum extensions, sealing decommissioned branch lines, or finishing a trunk line during system modification or replacement.
Designed as an OEM-style sheet metal fitting for use with standard 29 x 8 inch rectangular ductwork in residential and light commercial forced-air HVAC systems.
Installation is typically performed by a licensed HVAC technician or sheet metal contractor. Power down the air handling unit and verify the system is depressurized before working on duct sections. The end cap should be fastened with sheet metal screws and sealed with UL 181-listed duct tape or mastic sealant to maintain system integrity and meet applicable mechanical code requirements.
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