Master Flow 20 in. x 20 in. Duct-board Return Air Box
54.58 USD*
Description
The Duct-board Return Air Box is an R6 insulated box that installs traditionally in a ceiling. Can accept any size collar up to 18 in. Diameter (not included). Used as a central return vent box (Filter Grill Not included). Can be easily cut to size. Product is "knocked down" for shipping and must be assembled.