End Register Duct Boots - 12" X 6" X 7" Round End Center is Compatible with Duct 7" w20h20 + Product Details Size -

+ Product Details Size - The listed 12" diameter refers specifically to the size of the duct opening

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actual front end outer dimensions are approximately 36 5/8" width X 30 5/8" height

Crafted from high-quality C12200 copper

+ Product Details Size – 40"w X 20"h is the size for the duct opening measurement only

End Register Duct Boots - 12" X 6" X 7" Round End Center is Compatible with Duct 7" w20h20 + Product Details Size -Working Accordion + Product Details Size & Compatibility The size of a boot register end is 12" X 6" X 7" galvanized floor boot end center 26 gauge, compatible with duct 7" Superior Quality Made in the USA. Our end register boot is made of high quality galvanized sheet metal, ensuring durability and a secure connection to consecutive duct joints Applications Solid stamped steel with counter sunk screw holes (screws included) and no sharp edges.