Southwark Metal 1701430R8 Return Air Box R8 Insulation 14 Inches X 30 Inches

Product Description

The Southwark Metal 1701430R8 is a Model 170 return air box designed for residential and light commercial HVAC duct systems. It measures 14 inches by 30 inches and features R8 insulation for strong thermal performance in heating and cooling applications. This return air box is built to collect conditioned air from living spaces and channel it back to the air handler or furnace, completing the airflow loop that keeps HVAC systems running efficiently. HVAC installers and sheet metal contractors rely on return air boxes like this one when building or retrofitting duct systems that demand precise sizing, solid construction, and code-compliant insulation values. The 1701430R8 is fabricated from hot dipped galvanized steel meeting ASTM A653 CS Type B standards, giving it long-term corrosion resistance in attic, crawlspace, and mechanical room installations. The 26-gauge steel body provides structural rigidity without adding unnecessary weight, making it manageable for one- or two-person installation crews. A 1-inch outward-turned flange is included as a standard feature, simplifying connection to adjoining ductwork and reducing the need for additional fittings. The R8 insulation rating helps minimize heat transfer through the box walls, which is especially important in unconditioned spaces where energy loss is a concern. At roughly 4.55 pounds, the unit ships as a single piece and can be handled without heavy equipment. This product is manufactured in the USA and carries Prop 65 compliance documentation. It is a fully flanged, insulated return air box suitable for new construction and replacement projects alike. HVAC technicians, mechanical contractors, and duct fabricators will find this box fits standard rough-in dimensions for 14-by-30-inch return openings.

• 14 inches x 30 inches opening size fits standard return air rough-in cutouts
• R8 insulation rating reduces heat gain and loss in unconditioned installation spaces
• Hot dipped galvanized steel construction per ASTM A653 CS Type B for corrosion resistance

Product Highlights

The Southwark Metal 1701430R8 return air box combines 26-gauge galvanized steel construction with R8 insulation and a pre-formed flanged edge, giving HVAC installers a ready-to-fit solution for 14-by-30-inch return openings in residential and commercial duct systems.

Product Information

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: 1701430R8

Technical Specifications

• Size: 14 inches x 30 inches
• Material: Galvanized Steel
• Gauge: 26 GA
• R-Value: R8
• Insulated: Yes
• Flanged: Yes
• Galvanized: Yes
• Weight: 4.55 pounds
• Country of Origin: USA
• Unit of Measure: Each