This supply air transition is constructed with galvanized steel and has a 26 gauge thickness. It has a rectangular shape and silver color, and is compatible with most B cabinet forced air systems. The item is 28 inches in length, 20 inches in width and 28 inches in height, with an item weight of 20lb. It can be used with ducted evaporative coolers, central furnaces and central air conditioners, and features both updraft and downdraft installation options. The plenum comes with a unit quantity of 20 and has a manufacturer warranty of 1 month. Compatible brand includes Carrier, Bryant, Champion, York, and Day and Night.
eBay