The tinman supply air duct plenum is a rectangular-shaped product made of 26 gauge galvanized steel. It is compatible with various HVAC systems such as ducted evaporative coolers, packaged/rooftop furnaces, and central air conditioners. The plenum features both updraft and downdraft installation options and has a unit quantity of 20. It measures 17 x 20 x 36 inches and is designed to be used with other HVAC parts and accessories.
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