Southwark Metal 124R_4X12X7 Sheet Metal Duct Boot 4x12 to 7 Inch

Product Description

The SOUTHWARK METAL 124R_4X12X7 is a 90-degree rectangular-to-oval sheet metal duct boot designed to transition from a rectangular duct opening to an oval register outlet. Fabricated from hot-dipped galvanized steel, it delivers corrosion resistance suited for both residential and light commercial forced-air distribution systems. The rectangular inlet measures 4 inches by 12 inches, and the oval outlet is 7 inches in diameter. HVAC installers use this fitting when routing supply air from a trunk or branch duct into a floor, wall, or ceiling register box. Manufactured to ACCA and SMACNA standards, it meets the dimensional and performance requirements common to residential duct system design.

This boot is intended for supply air applications in forced-air heating and cooling systems where a rectangular-to-oval transition is required. It fits standard register configurations and is a common component in new construction and retrofit ductwork where a 90-degree offset between the duct run and the register face is needed. It is suited for use in residential and light commercial installations following SMACNA duct construction guidelines.

Key Features

• Hot-dipped galvanized steel construction for durability and corrosion resistance
• 90-degree rectangular-to-oval geometry for direct register-to-duct transitions
• Rectangular inlet: 4 inches by 12 inches
• Oval outlet: 7 inches in diameter
• Manufactured to ACCA and SMACNA applicable standards

Compatibility

Designed as an OEM-style replacement and new-installation fitting for residential and light commercial forced-air duct systems requiring a rectangular-to-oval, 90-degree boot transition at the register opening.

Installation Notes

Installation is typically performed by a licensed HVAC technician or sheet metal installer. Power down the air handling unit and shut off the system before connecting or modifying ductwork. Secure the boot to the duct with sheet metal screws and seal all joints with UL 181-rated mastic or foil tape in accordance with SMACNA installation standards. Do not compress or deform the oval outlet, as this will reduce airflow and affect register performance.

Technical Specifications

• Material: Hot-Dipped Galvanized Steel
• Inlet Size (Rectangular): 4 inches x 12 inches
• Outlet Size (Oval): 7 inches diameter
• Type: Register, 90 Degree, Rectangular to Oval
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 124R_4X12X7