Southwark Metal 63A_12IN Square to Round Duct Takeoff 12 in

Product Description

The SOUTHWARK METAL 63A_12IN is a square-to-round adjustable sheet metal duct takeoff designed for low-pressure HVAC duct distribution systems. Constructed from hot-dipped galvanized steel, this fitting transitions a square or rectangular duct collar to a round branch duct, allowing a secure and airtight connection at the main trunk. The 12-inch diameter opening is consistent on both the inlet and outlet, making this a direct, symmetrical transition fitting. HVAC sheet metal installers and duct fabricators use this component during new construction and retrofit work where branch runs must be pulled from a rectangular main trunk.

This takeoff is suited for residential and light commercial forced-air systems where a 12-inch round branch duct is required. The adjustable design allows the fitting to be repositioned or angled to suit a range of duct layout conditions without requiring custom fabrication. It meets ACCA and SMACNA standards, making it appropriate for installations subject to standard duct design and leakage requirements in those specifications.

Key Features

• Hot-dipped galvanized steel construction resists corrosion in typical mechanical room and attic environments
• Adjustable design accommodates varied branch duct angles without custom shop fabrication
• 12-inch diameter on both inlet and outlet for a symmetrical, direct transition
• Meets ACCA and SMACNA applicable standards for duct construction and performance
• Square-to-round configuration connects rectangular trunk duct to round branch run

Compatibility

Designed as an OEM-style replacement and new-installation fitting for low-pressure sheet metal duct systems requiring a 12-inch square-to-round branch takeoff built to ACCA and SMACNA standards.

Installation Notes

Installation of sheet metal duct fittings is typically performed by licensed HVAC technicians or sheet metal workers in accordance with SMACNA duct construction standards. Power down the air handling unit and close the main disconnect before working inside an active duct system. Secure the takeoff to the trunk duct using sheet metal screws and seal all joints with listed duct sealant or mastic to meet applicable leakage class requirements. Do not rely on duct tape alone as the primary sealant on pressure-class duct systems.

Technical Specifications

• Material: Hot-Dipped Galvanized Steel
• Type: Adjustable Square to Round
• Size A (Inlet): 12 inches
• Size B (Outlet): 12 inches
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 63A_12IN