Southwark Metal 55NC_9IN Duct Tee End Cap 9 Inch

Product Description

The SOUTHWARK METAL 55NC_9IN is a no-crimp sheet metal duct tee end cap designed to terminate the open branch of a round sheet metal tee fitting in residential and light commercial HVAC duct systems. Fabricated from hot dip galvanized steel, this 9-inch diameter cap provides a clean, secure closure without requiring a crimped end for insertion. It is installed by HVAC technicians and sheet metal mechanics during ductwork fabrication or system modification where a tee branch needs to be capped off, redirected, or temporarily sealed.

This end cap is suited for round duct tee applications in forced-air HVAC systems where branch termination is required. The no-crimp design accommodates duct branches that have not been crimped, making it appropriate for use on raw-cut or factory-end duct tee outlets. It conforms to ACCA and SMACNA standards, making it applicable on jobs where those specifications govern sheet metal duct construction and installation practice.

Key Features

• No-crimp design fits directly onto uncrimped 9-inch duct tee branch ends
• Hot dip galvanized steel construction provides corrosion resistance in typical duct environments
• Meets ACCA and SMACNA applicable standards for sheet metal ductwork
• Provides a clean branch termination without additional fitting modification

Compatibility

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

Installation Notes

Installation is performed by licensed HVAC technicians or sheet metal mechanics. The air handling system should be powered down and the air handler or furnace shut off before any ductwork modification. Secure the cap with sheet metal screws and seal all joints with UL 181-rated duct sealant or foil tape per SMACNA guidelines. Do not use this cap on crimped-end duct branches, as the no-crimp design requires a plain, uncrimped mating surface.

Technical Specifications

• Diameter: 9 inches
• Material: Hot Dip Galvanized Steel
• Type: No Crimp
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 55NC_9IN