Return Air Boxes - Sheet Metal

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This is a return air box with filter grille and filter with a 20 round adapter for 20 flex duct which can be installed in a ceiling or side wall

High-quality filters for your furnace, air conditioner, refrigerator, pool or spa at unbeatable prices! Fast Shipping & Compatibility Guarantee  Can we see what the remainder of the return duct looks like that hooks up to that base box? air filter is possible in this case Left

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