21 1/4 X 21 1/4 X 35.5 With1 Filter Rack Return Air Duct Plenum

This plenum and filter box combo is designed for use in HVAC and refrigeration systems. It measures 21 1/4 X 21 1/4 X 35.5 inches and features a 1 inch filter rack for easy maintenance. The plenum is made in the United States and is suitable for use with unbranded or generic brands.

The product UPC is not applicable. This item is ideal for those looking to improve their HVAC and refrigeration systems.