Southwark Metal 27R_12X12X8 Duct Boot 12x12 to 8 in

Product Description

The SOUTHWARK METAL 27R_12X12X8 is a straight rectangular-to-round sheet metal duct boot designed for register terminations in forced-air HVAC duct systems. Fabricated from hot-dipped galvanized steel, this boot transitions from a 12 x 12 inch rectangular opening to an 8-inch round collar, making it a standard component in residential and light commercial supply-air distribution. Licensed HVAC technicians and sheet metal installers use this fitting to connect round branch ductwork to a floor, wall, or ceiling register. Compliance with ACCA and SMACNA standards means it meets recognized industry requirements for duct construction and airflow performance.

This duct boot is suited for supply-air register connections in residential new construction, renovation, and HVAC replacement projects. The straight configuration simplifies installation in floor or ceiling applications where the duct runs perpendicular to the register face. The rectangular-to-round geometry accommodates round trunk or branch lines feeding a standard 12 x 12 inch register opening. No field fabrication is required for typical installations.

Key Features

• Hot-dipped galvanized steel construction resists corrosion in both conditioned and unconditioned spaces
• Straight rectangular-to-round transition — 12 x 12 inch face to 8-inch round collar
• Meets ACCA and SMACNA applicable standards for sheet metal ductwork
• Register-style boot for direct connection to standard floor, wall, or ceiling registers
• Factory-formed geometry eliminates field-cutting or custom fabrication for standard installations

Compatibility

Designed as an OEM-style sheet metal fitting for forced-air HVAC duct systems requiring a straight rectangular-to-round register boot with a 12 x 12 inch rectangular opening and an 8-inch round collar.

Installation Notes

Installation is performed by licensed HVAC technicians or sheet metal mechanics following SMACNA duct construction standards. Shut down the air handler and de-energize the system before working in the duct system. Secure the boot to the subfloor or framing using appropriate sheet metal screws and seal all joints with UL 181-rated mastic or foil tape per local mechanical code requirements. Do not compress or deform the round collar during installation, as this will restrict airflow and affect system balance.

Technical Specifications

• Material: Hot-Dipped Galvanized Steel
• Face Size (Size A): 12 inches x 12 inches
• Collar Diameter (Size B): 8 inches
• Type: Register, Straight, Rectangular to Round
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 27R_12X12X8