Southwark Metal RABR8202512 Return Air Box R8 Insulation 20 Inches X 25 Inches X 12 Inches

Product Description

The Southwark Metal RABR8202512 is a galvanized steel return air box designed for residential and light commercial HVAC duct systems. It measures 20 inches wide by 25 inches long by 12 inches tall, giving it a cubic measurement of approximately 3.47 cubic feet. This unit ships individually and weighs 6.8 pounds. Return air boxes are a critical component in forced-air HVAC installations. They connect the return air grille opening in a wall, floor, or ceiling directly to the return air duct system. Without a properly fitted return air box, conditioned air cannot flow back to the air handler efficiently, reducing system performance and comfort. The RABR8202512 is factory-insulated to R8, which helps prevent condensation on the exterior surfaces and reduces heat gain or loss as unconditioned air travels back toward the air handler. R8 insulation is commonly required by modern energy codes in unconditioned spaces such as attics, crawlspaces, and unconditioned basements. The box is constructed from 26-gauge galvanized steel, which resists rust and corrosion while maintaining structural rigidity under negative pressure. The galvanized coating provides long-term durability in humid HVAC environments. Flanged construction makes it easier to secure the box to framing members and connect duct board or flex duct to the collar. This product is manufactured in the USA and carries a Prop 65 designation. HVAC installers, sheet metal contractors, and mechanical contractors will find this return air box a reliable fit for new construction and retrofit applications requiring a flanged, insulated, galvanized return air plenum box.

• Factory-insulated to R8 for compliance with modern energy codes in unconditioned spaces
• 26-gauge galvanized steel construction resists corrosion and maintains shape under negative air pressure
• Flanged design simplifies attachment to framing and connection to return duct systems

Product Highlights

The RABR8202512 delivers a ready-to-install, R8-insulated return air box in a 20 by 25 by 12 inch profile. Its galvanized steel build and flanged edges make it a dependable choice for HVAC new construction and retrofit projects.

Product Information

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: RABR8202512

Technical Specifications

• Size: 20 inches x 25 inches x 12 inches
• Width: 20 inches
• Length: 25 inches
• Height: 12 inches
• Weight: 6.8 pounds
• Gauge: 26 GA
• Composition: Galvanized Steel
• R-Value: R8
• Insulated: Yes
• Flanged: Yes
• Galvanized: Yes
• Country of Origin: USA
• Product Family: RAB