Southwark Metal 21_10X10 Trunk Duct End Cap 10x10

Product Description

The SOUTHWARK METAL 21_10X10 is a hot dip galvanized steel trunk duct end cap designed to terminate rectangular sheet metal ductwork at 10 inches by 10 inches. It closes off the open end of a trunk duct run, preventing air bypass and maintaining system static pressure. Fabricated from hot dip galvanized steel, it resists corrosion in both conditioned and unconditioned spaces. HVAC sheet metal installers and duct fabricators use this cap on forced-air systems where a trunk duct terminates at a wall, floor, or ceiling plane. It meets ACCA and SMACNA standards for duct construction and air distribution work.

This end cap is suited for residential and light commercial forced-air HVAC installations where a 10-inch by 10-inch rectangular trunk duct requires a sealed termination. Typical applications include trunk duct systems in attics, basements, and crawlspaces where the duct run ends without a branch takeoff or register boot. The galvanized steel construction holds up in unconditioned spaces with ambient moisture exposure. Sheet metal mechanics installing or modifying duct systems will find this a straightforward fit for standard trunk termination points.

Key Features

• Hot dip galvanized steel construction for corrosion resistance in exposed duct environments
• Sized at 10 inches by 10 inches to match standard rectangular trunk duct dimensions
• Trunk-type end cap design seals duct terminations and prevents unintended air loss
• Meets ACCA and SMACNA applicable standards for sheet metal duct fabrication
• Compatible with standard rectangular sheet metal trunk duct systems

Compatibility

Designed as an OEM-style sheet metal component for use with 10-inch by 10-inch rectangular trunk duct systems built to ACCA and SMACNA standards.

Installation Notes

Installation should be performed by a qualified sheet metal mechanic or licensed HVAC technician. Power down the air handling equipment before working on any duct section. The cap is typically fastened using sheet metal screws and sealed with UL 181-rated duct sealant or mastic per applicable SMACNA guidelines. Follow all local mechanical codes for duct sealing and support requirements.

Technical Specifications

• Material: Hot Dip Galvanized Steel
• Size: 10 inches x 10 inches
• Type: Trunk
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 21_10X10