This plenum is designed to fit a 21 1/4 x 21 1/4 inch filter and has a 1 inch insulation. Made in the United States, it is suitable for use in HVAC and refrigeration systems. The plenum has a filter rack and is constructed from quality material to ensure durability. The dimensions of the plenum are 21 1/4 x 21 1/4 x 16 inches, making it the perfect size for a variety of applications. The brand of the plenum is unbranded/generic, and it falls under the category of Business & Industrial/HVAC & Refrigeration/HVAC & Refrigeration: Parts & Accessories/Plenum & Filter Boxes.
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