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The SNAPPY 213-20s is a galvanized steel set-in cap with an integrated cleat, designed for use in residential and light commercial sheet metal ductwork systems. This fitting seals the end of a 2.25-inch by 10-inch rectangular duct run, providing a clean termination point where airflow is not required or where a branch has been capped off. The cleat attachment method allows for secure, tool-minimal installation that aligns with standard SMACNA sheet metal practices. At 0.80 pounds, the fitting is lightweight enough for single-technician handling during duct fabrication or retrofit work.
This cap is suited for use in forced-air HVAC systems where rectangular trunk or branch ducts require a terminated end. It is a common component in new construction duct layouts and in existing system modifications where a register or branch outlet is being closed off. Sheet metal contractors and HVAC installers working with standard rectangular duct profiles will recognize the set-in style as a straightforward fit into the duct opening, secured by the factory-integrated cleat.
Designed as an OEM-style replacement and standard fitting for 2.25-inch by 10-inch rectangular sheet metal duct systems in residential and light commercial forced-air HVAC applications.
Installation is typically performed by a licensed sheet metal contractor or HVAC technician. Shut down the air handling system before modifying any duct section. The set-in cap should be seated fully into the duct opening and the cleat secured per standard sheet metal practice before the system is returned to service. Follow local mechanical codes and SMACNA guidelines for duct termination requirements.
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