Southwark Metal 31_30X6 Duct Register Frame 30x6 Return Air

Product Description

The Southwark Metal 31_30X6 is a sheet metal duct register frame sized at 30 inches x 6 inches, designed for return air applications in forced-air HVAC systems. Fabricated from hot dip galvanized steel, this frame provides a durable, corrosion-resistant border that seats a return air grille or register at the wall, floor, or ceiling opening. HVAC installers and sheet metal contractors use this frame to finish duct terminations cleanly and securely. It conforms to ACCA and SMACNA standards, making it appropriate for residential and light commercial installations where code-compliant ductwork is required.

This frame is used in return air duct systems where a grille or register must be held flush against the finished surface of a wall, floor, or ceiling. The 30 x 6 inch size fits a standard rectangular duct opening of the same nominal dimension. It is a common component in new construction and retrofit HVAC projects where sheet metal duct terminations require a finished frame before register installation. Sheet metal contractors and HVAC technicians typically install this frame during rough-in or finish-out stages of a project.

Key Features

• Hot dip galvanized steel construction resists corrosion in return air environments
• 30 inches x 6 inches frame size fits standard nominal duct openings
• Return air type — designed for low-velocity intake applications
• Meets ACCA and SMACNA applicable standards for duct construction
• Provides a clean, finished border for grille or register seating

Compatibility

Designed as an OEM-style replacement and new-construction frame for return air register openings in residential and light commercial sheet metal duct systems requiring a 30 inch x 6 inch nominal frame.

Installation Notes

Installation is performed by licensed HVAC technicians or sheet metal contractors following SMACNA and ACCA ductwork guidelines. Power down the air handling system before cutting or modifying duct openings. Secure the frame to the duct collar or rough framing using sheet metal screws appropriate for the gauge. Seal all frame edges to the surrounding surface to prevent air bypass and maintain system static pressure balance.

Technical Specifications

• Frame Size: 30 inches x 6 inches
• Material: Hot Dip Galvanized Steel
• Type: Return Air
• Applicable Standards: ACCA, SMACNA

Standard Information

• Brand: Southwark Metal
• Manufacturer Part Number: 31_30X6