Southwark Metal CUBER8161636 Sealed Plenum Cube R8 Lined 16 X 16 X 36 Inches

Product Description

The Southwark Metal CUBER8161636 is a sealed plenum cube designed for HVAC air distribution systems. It measures 16 inches wide by 16 inches long by 36 inches tall. This unit provides a central distribution point where takeoffs and collars can be attached to direct conditioned air throughout a structure. HVAC contractors and sheet metal installers use plenum cubes in residential and light commercial duct systems to branch airflow from a main trunk line or air handler to multiple supply runs. The CUBER8161636 is lined with R8 insulation, which helps reduce heat transfer and condensation on the outer surface of the plenum. This makes it well suited for installations in unconditioned spaces such as attics, crawl spaces, and mechanical rooms where thermal performance is critical. The unit is constructed from 26-gauge galvanized steel, which provides corrosion resistance and structural durability over the long service life expected in permanent HVAC installations. The galvanized coating protects the steel from rust in humid environments, a common concern in both attic and basement installations. The sealed design limits air leakage, helping systems maintain efficiency and meet energy code requirements. The 36-inch collar height gives installers flexibility when connecting flex duct or rigid duct branches. This product is manufactured in the USA and sold as a single unit. It carries a Proposition 65 designation. The cubic measurement is approximately 5.33 cubic feet. The unit weighs approximately 15.16 pounds. Trade professionals looking for a reliable, insulated plenum cube for residential HVAC duct layout will find this unit meets standard installation requirements for supply air distribution.

• R8 insulation lining reduces heat loss and controls condensation in unconditioned spaces
• 26-gauge galvanized steel construction provides corrosion resistance and long-term durability
• Sealed design limits air leakage and supports energy-efficient duct system performance

Product Highlights

The Southwark Metal CUBER8161636 is a USA-made, R8-insulated, sealed plenum cube built from 26-gauge galvanized steel. It gives HVAC installers a reliable air distribution point for residential and light commercial supply duct systems.

Product Information

Standard Information

• Brand: SOUTHWARK METAL
• Manufacturer Part Number: CUBER8161636

Technical Specifications

• Size: 16 inches x 16 inches x 36 inches
• Width: 16 inches
• Length: 16 inches
• Height: 36 inches
• Cubic Measurement: 5.33 cubic feet
• Weight: 15.16 pounds
• Material: Galvanized Steel
• Gauge: 26 GA
• R-Value: R8
• Insulated: Yes
• Flanged: No
• Galvanized: Yes
• Country of Origin: USA
• Prop 65: Yes
• Unit of Measure: EA