

Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The Southwark Metal RABR8162512 is a return air box built for residential and light commercial HVAC duct systems. It measures 16 inches by 25 inches by 12 inches and is designed to connect return air grilles or registers to the main duct system. Return air boxes are a critical part of any forced-air system. They collect air from the conditioned space and direct it back to the air handler or furnace for reconditioning. Without a properly sized and sealed return air box, a system can lose efficiency, create pressure imbalances, and deliver poor indoor air quality. The RABR8162512 is fabricated from 26-gauge galvanized steel, giving it the strength and corrosion resistance needed for long-term performance in both new construction and retrofit applications. The galvanized coating protects against moisture and rust, which is especially important in humid environments or unconditioned spaces like attics and crawlspaces. This return air box comes pre-insulated with R8 insulation, which helps prevent condensation on the exterior surface and reduces heat gain or loss through the box walls. R8 insulation meets or exceeds the requirements of many energy codes for return air plenums in unconditioned spaces. The unit is not flanged, so installers connect it directly to the duct opening using standard sheet metal screws and mastic sealant or foil tape. It ships as a single unit and is manufactured in the USA. HVAC contractors, sheet metal fabricators, and mechanical installers working on residential duct systems will find this box ready to install straight out of the packaging. It fits standard 16 by 25 filter grille openings, one of the most common return air sizes in residential construction.
The Southwark Metal RABR8162512 is a USA-made, R8-insulated return air box in galvanized steel, designed for efficient return air handling in residential HVAC duct systems. Its standard 16 by 25 inch opening and 12-inch depth make it a direct fit for common return air applications.
Thanks for subscribing!
This email has been registered!