Southwark Metal 73C101010 Square to Round Transition 10 Inches X 10 Inches X 10 Inches

Product Description

The Southwark Metal 73C101010 is a square to round transition fitting designed for use in residential and commercial HVAC duct systems. This fitting connects a square or rectangular duct opening to a round duct, making it a critical component when transitioning between different duct shapes in a forced-air system. HVAC installers, sheet metal contractors, and mechanical tradespeople rely on this type of fitting to complete clean, airtight duct layouts where the supply plenum or trunk line meets a round branch duct. The 73C101010 measures 10 inches by 10 inches at the square end and transitions to a 10-inch round outlet, with a height of 12 inches. This gives the fitting enough depth to create a smooth airflow transition, reducing turbulence and pressure drop inside the duct system. Fabricated from 26-gauge galvanized steel, this fitting offers solid resistance to moisture, rust, and the wear that comes with long-term HVAC operation. Galvanized steel is the standard material for residential and light commercial ductwork because it holds its shape, resists corrosion, and meets most local mechanical code requirements. The 26-gauge thickness provides a good balance between rigidity and workability, making the fitting easier to connect to adjacent duct sections using standard sheet metal screws and duct tape or mastic sealant. Manufactured in the USA by Southwark Metal, a trusted name in HVAC sheet metal products, the 73C101010 is sold individually and meets Prop 65 compliance standards. This fitting is part of Southwark's 73C product family, which covers a range of square to round transition sizes for various duct configurations. Installers working on new construction, HVAC replacement, or duct modification jobs will find this fitting straightforward to work with and compatible with standard round duct connections.

• Transitions a 10 inches x 10 inches square duct opening to a 10-inch round duct outlet
• Constructed from 26-gauge galvanized steel for durability and corrosion resistance
• Made in the USA and sold individually for single-piece replacement or installation projects

Product Highlights

The Southwark Metal 73C101010 square to round transition provides a reliable, code-friendly solution for connecting square ductwork to round branch ducts in forced-air HVAC systems. Its galvanized steel construction and American manufacturing make it a dependable choice for professional installers.

Product Information

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 73C101010

Technical Specifications

• Material: Galvanized Steel
• Gauge: 26 GA
• Duct Size: 10 inches x 10 inches
• Diameter: 10 inches
• Length: 10 inches
• Width: 10 inches
• Height: 12 inches
• Weight: 2.65 pounds
• Galvanized: Yes
• Country of Origin: USA
• Prop 65: Yes
• Unit of Measure: Each