Southwark Metal 24_3-1/4X12X8 Duct Wall Stack Elbow Boot

Product Description

The SOUTHWARK METAL 24_3-1/4X12X8 is a sheet metal duct wall stack elbow boot designed to transition airflow from a vertical wall cavity into a floor or ceiling register opening. Fabricated from hot dip galvanized steel, this 90-degree elbow boot connects a 3-1/4 inch x 12 inch rectangular duct opening to an 8 inch round collar. It is a standard component in residential forced-air HVAC distribution systems and is installed by licensed HVAC technicians and sheet metal contractors during new construction and retrofit work.

This wall stack boot is used in residential HVAC applications where supply air is delivered through a wall stud cavity and terminates at a register. The rectangular face opening measures 3-1/4 inches x 12 inches, fitting standard single-width wall stack duct dimensions. The 8 inch round collar connects directly to round or flexible duct on the supply side. It is suited for low-profile wall installations where a 90-degree transition is required between the vertical duct run and the horizontal register face.

Key Features

• Hot dip galvanized steel construction for corrosion resistance in HVAC duct systems
• 90-degree elbow configuration transitions airflow from wall stack to register face
• 3-1/4 inch x 12 inch rectangular face opening fits standard wall stack duct dimensions
• 8 inch diameter round collar for connection to round or flexible supply duct
• Manufactured to ACCA and SMACNA applicable standards

Compatibility

Designed as an OEM-style replacement and new-construction fitting for residential forced-air supply duct systems using standard 3-1/4 inch x 12 inch wall stack duct configurations with an 8 inch round duct connection.

Installation Notes

Installation is performed by licensed HVAC technicians or sheet metal contractors. Shut down and lock out the air handling unit before connecting or modifying any duct components. Secure all joints with sheet metal screws and seal with mastic or UL 181-listed tape per SMACNA guidelines and local mechanical code requirements. Do not compress or restrict the round collar connection, as this reduces system airflow and static pressure performance.

Technical Specifications

• Material: Hot Dip Galvanized Steel
• Face Opening (Size A): 3-1/4 inches x 12 inches
• Round Collar Diameter (Size B): 8 inches
• Elbow Angle: 90 degrees
• Type: Wall Stack Elbow Boot
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 24_3-1/4X12X8