Southwark Metal RABR8142512 Return Air Box R8 Insulation 14 Inches X 25 Inches X 12 Inches

Product Description

The Southwark Metal RABR8142512 is a return air box designed for residential and light commercial HVAC systems. It measures 14 inches in length, 25 inches in width, and 12 inches in height, giving it a total cubic measurement of approximately 2.43 cubic feet. This unit ships individually and is built for direct integration into forced-air return air systems where space, insulation performance, and structural durability all matter.

The RABR8142512 is constructed from 26-gauge galvanized steel, which provides corrosion resistance and long-term structural integrity in attic, basement, and wall cavity installations. The galvanized coating helps protect against moisture that is common in return air plenums and unconditioned spaces. The steel gauge is appropriate for the mechanical demands of a return air application, holding shape under negative pressure without flexing or collapsing.

This return air box comes factory-insulated to an R-8 thermal rating. R-8 insulation significantly reduces heat gain and heat loss through the box walls, improving overall system efficiency and helping HVAC systems maintain target temperatures with less energy draw. For installations in unconditioned attics or crawl spaces, R-8 is a commonly specified minimum insulation value that meets many local and national energy codes.

The box does not include flanges, so installers will use standard sheet metal techniques and fasteners for connection to ductwork. It is manufactured in the USA and carries a Proposition 65 designation. HVAC technicians and sheet metal contractors will find this return air box well-suited for new construction and replacement applications where a pre-insulated, ready-to-install unit saves labor time on the job site.

• Factory-insulated to R-8 for energy-efficient return air performance in unconditioned spaces
• Built from 26-gauge galvanized steel for corrosion resistance and structural strength under negative pressure
• 14 inches x 25 inches x 12 inches dimensions fit standard return air openings in residential and light commercial HVAC layouts

Product Highlights

The Southwark Metal RABR8142512 is a pre-insulated, galvanized steel return air box rated at R-8, built for reliable performance in forced-air HVAC systems. Its USA-made construction and ready-to-install design reduce job site labor while meeting common energy code insulation requirements.

Product Information

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: RABR8142512

Technical Specifications

• Size: 14 inches x 25 inches x 12 inches
• Length: 14 inches
• Width: 25 inches
• Height: 12 inches
• Cubic Measurement: 2.4306 cubic feet
• Weight: 6.922 pounds
• Material: Galvanized Steel
• Gauge: 26 GA
• R-Value: R8
• Insulated: Yes
• Flanged: No
• Galvanized: Yes
• Product Family: RAB
• Country of Origin: USA
• Unit of Measure: Each