Southwark Metal 55NC_14IN Duct Tee End Cap 14 in

Product Description

The SOUTHWARK METAL 55NC_14IN is a no-crimp sheet metal duct tee end cap designed to close off the open end of a round duct tee fitting in forced-air HVAC distribution systems. Constructed from hot-dip galvanized steel, this cap fits a 14-inch diameter duct tee opening and provides a clean, secure termination without requiring a crimped edge for installation. It is manufactured to meet ACCA and SMACNA standards, making it appropriate for commercial and residential ductwork installations where compliant fabrication is required. HVAC sheet metal mechanics and duct installers are the primary trades that handle this fitting.

This end cap is used wherever a round duct tee branch needs to be capped off — common scenarios include balancing airflow by blocking an unused branch, sealing a tee during phased construction, or permanently closing off a branch that is no longer needed in the duct layout. The no-crimp design simplifies field installation and works with standard 14-inch round duct tee fittings found in both light commercial and residential forced-air systems.

Key Features

• No-crimp design eliminates the need for a crimped duct end, speeding up field installation
• Hot-dip galvanized steel construction provides corrosion resistance in occupied and unconditioned spaces
• 14-inch diameter fits standard round duct tee openings of the same size
• Manufactured to ACCA and SMACNA applicable standards for compliant ductwork assemblies
• Plain end cap profile for straightforward termination of unused or sealed tee branches

Compatibility

Designed as an OEM-style replacement and standard-fit cap for 14-inch diameter round sheet metal duct tee fittings in forced-air HVAC duct systems built to ACCA and SMACNA fabrication standards.

Installation Notes

Installation is typically performed by a licensed sheet metal mechanic or HVAC technician following SMACNA duct construction standards. The air handling system should be powered down and airflow stopped before capping or reconfiguring any duct branch. Secure the cap with sheet metal screws and seal all joints with UL 181-rated duct sealant or mastic as required by local mechanical codes. Do not use this cap on pressurized duct systems operating outside standard residential or light commercial static pressure ranges without verifying fitment with the duct system design.

Technical Specifications

• Diameter: 14 inches
• Material: Hot Dip Galvanized Steel
• Type: No Crimp
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 55NC_14IN