The downflow subbase is for use with Goodman downflow furnaces. The purpose of this product is to keep the furnace up off of a combustible floor and easily connect your furnace to the ductwork underneath. Be sure to select the subbase that matches the width of your Goodman downflow furnace.
|Top Opening Width||19.75 inches|
|Top Opening Depth||19.5 inches|
|Bottom Opening Width||20.5 inches|
|Bottom Opening Depth||26.75 inches|