Southwark Metal 58_12X7 Round Duct Reducer 12x7 Inch

Product Description

The SOUTHWARK METAL 58_12X7 is a 3-piece round sheet metal duct reducer designed to transition airflow from a 12-inch diameter duct to a 7-inch diameter duct in forced-air HVAC distribution systems. Fabricated from hot dipped galvanized steel, this reducer delivers corrosion resistance suitable for both supply and return trunk-to-branch transitions. The 3-piece construction allows for reliable field assembly and maintains structural integrity under normal duct system pressures. HVAC installers and sheet metal contractors install this fitting during new construction and retrofit projects where duct diameter must step down between trunk lines and branch runs.

This reducer is intended for residential and light commercial forced-air duct systems where a concentric round-to-round diameter reduction is required. It is commonly installed at trunk-to-branch takeoff points, air handler supply plenums, and inline duct transitions. The fitting conforms to ACCA and SMACNA applicable standards, making it appropriate for duct systems designed and installed under those guidelines. No crimp is supplied on this fitting, so field crimping or the use of a separate drive cleat or duct tape per local code may be required to complete the connection.

Key Features

• Hot dipped galvanized steel construction provides corrosion resistance for long-term duct system use
• 3-piece round design enables straightforward field assembly at the transition point
• Larger end: 12 inches diameter; smaller end: 7 inches diameter
• Meets ACCA and SMACNA applicable standards for duct fabrication
• No crimp supplied, allowing the installer to finish connections per project requirements

Compatibility

Designed as an OEM-style replacement and new-construction fitting for round forced-air duct systems requiring a 12-inch to 7-inch diameter reduction, in compliance with ACCA and SMACNA duct construction standards.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified sheet metal contractor. Power down the air handling unit and verify the system is depressurized before cutting into or modifying existing ductwork. Secure all connections with approved fasteners, drive cleats, or UL-listed duct tape per local mechanical code and SMACNA guidelines. Inspect the completed joint for air leakage before returning the system to operation.

Technical Specifications

• Material: Hot Dipped Galvanized Steel
• Type: 3-Piece Round Reducer
• Larger End Diameter: 12 inches
• Smaller End Diameter: 7 inches
• Crimp Supplied: No
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 58_12X7