This supply air duct plenum is made of galvanized steel with a thickness of 26 gauge. It measures 20 x 12 x 20 inches and is suitable for various heating, ventilation, and air conditioning systems, including ducted evaporative coolers, packaged or rooftop furnaces, and wall heaters. This plenum features both updraft and downdraft installations and is compatible with a range of products, such as dual fuel split air conditioning systems, heat pump split systems, and central air conditioning units. It comes in a rectangular shape and is sold in a unit quantity of 20.
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