The product is a rectangular plenum made of galvanized steel with a 26 gauge thickness. It has dimensions of 21 inches by 16.5 inches by 23.5 inches and can be installed for updraft or downdraft air flow. The plenum is compatible with various HVAC systems including ducted evaporative coolers, packaged/rooftop furnaces, and heat pump split systems. The unit quantity is 20.
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