Southwark Metal 55_9IN Duct Tee End Cap 9 Inch

Product Description

The SOUTHWARK METAL 55_9IN is a sheet metal duct tee end cap designed to terminate the branch or trunk opening of a sheet metal tee fitting in residential and commercial forced-air duct systems. Manufactured from hot-dip galvanized steel, this cap provides corrosion resistance suitable for supply and return air applications. The 9-inch diameter crimped end allows it to slip over or seat into standard round duct fittings of the same size without additional modification. HVAC installers and sheet metal mechanics use this cap to close off unused tee openings during system installation or when reconfiguring duct layouts.

This tee end cap is used in round sheet metal ductwork systems where a branch opening must be sealed or capped off. Common applications include new construction HVAC installations, duct system modifications, and service work where a tee branch is no longer active. The crimped end provides a secure friction fit on standard 9-inch round duct and tee fittings, making it a straightforward solution for closing unused duct openings in both residential and light commercial systems.

Key Features

• Hot-dip galvanized steel construction provides corrosion resistance for long-term duct system use
• 9-inch diameter crimped end seats securely on standard round duct tee fittings
• Crimp design allows tool-free installation in most applications
• Meets ACCA and SMACNA applicable standards for sheet metal duct fittings
• Suitable for sealing unused branch openings during new installs or duct reconfiguration

Compatibility

Designed as an OEM-style sheet metal fitting for use with standard 9-inch round duct tee fittings in forced-air HVAC duct systems built to SMACNA and ACCA guidelines.

Installation Notes

Installation is performed by licensed HVAC technicians or qualified sheet metal mechanics. Power down the air handling unit and relieve system pressure before working on any duct section. The crimped end should be fully seated on the tee fitting opening and secured with sheet metal screws and duct tape or mastic sealant in accordance with SMACNA installation standards. Verify the cap is airtight before returning the system to service.

Technical Specifications

• Material: Hot-Dip Galvanized Steel
• Diameter: 9 inches
• End Type: Crimp
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 55_9IN