Description 810 Southwark – Return Air Package – E:Mail: [email protected] to confirm availability or for volume discounts Southwark – Return Air Package Complete package consisting of: 1 – #20 Starting Collar 2 – 30″ Duct Sections 1 – Return Air Plenum with 1″ Filter Rack 6 – 10″ Drive Straps *Shipped knocked down in one carton Attributes Brand Southwark Color Silver Composition Galvanized Steel Country of Origin USA Cubic Measurement 5.5527 Dimensional Weight 69 EAN 0099273523620 Flanged YES Galvanized YES Gauge 26 GA Insulated NO Prop 65 YES R-Value Not Insulated Size 20″ x 10″ – 20″ x 16″ UOM EA UPC 099273523620