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McDaniel Metals SBT21

Downflow Subbase for 21" Wide Furnace

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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