Southwark Metal 21_30X10 Trunk Duct End Cap 30x10 in

Product Description

The SOUTHWARK METAL 21_30X10 is a sheet metal trunk duct end cap sized at 30 inches x 10 inches, fabricated from hot dip galvanized steel. It is used to close off the open end of a rectangular trunk duct run in forced-air HVAC distribution systems. The galvanized steel construction provides corrosion resistance suitable for both conditioned and unconditioned spaces. This fitting meets ACCA and SMACNA fabrication standards, making it appropriate for commercial and residential duct systems where code-compliant sheet metal work is required. HVAC sheet metal contractors and duct installers are the primary trade installing this type of fitting.

This end cap is designed for trunk-style rectangular ductwork and is sized to cap a 30-inch by 10-inch duct opening. It is typically installed at the terminal end of a main supply or return trunk where no further duct extension is needed. Suitable for new construction and retrofit applications in light commercial and residential forced-air systems. The hot dip galvanized finish meets standard shop-fabricated duct requirements per SMACNA guidelines.

Key Features

• Hot dip galvanized steel construction for corrosion resistance in HVAC duct applications
• Sized to fit 30-inch x 10-inch rectangular trunk duct openings
• Trunk-type end cap closes off terminal duct ends cleanly and securely
• Meets ACCA and SMACNA applicable standards for sheet metal duct fittings
• Compatible with standard rectangular trunk duct systems in forced-air HVAC installations

Compatibility

Designed as a standard sheet metal fitting for rectangular trunk ductwork with a 30-inch x 10-inch opening, conforming to ACCA and SMACNA fabrication standards for forced-air HVAC distribution systems.

Installation Notes

Installation should be performed by a licensed sheet metal contractor or qualified HVAC technician. Power down the air handling equipment before working on the duct system. The end cap is typically secured using sheet metal screws and sealed with UL 181-listed duct sealant or approved foil tape per local mechanical code requirements. Follow SMACNA duct construction standards for proper fastener spacing and sealing.

Technical Specifications

• Material: Hot Dip Galvanized Steel
• Size: 30 inches x 10 inches
• Type: Trunk End Cap
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 21_30X10