4" Clinch Base Side Metal Takeoff 18" Round Duct Pipe + How To Measure a

+ How To Measure a Grille Before You Buy Duct Opening Size:

actual front end outer dimensions are approximately 38 5/8" width X 26 5/8" height -

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For added protection

+ Product Details Size - 10"w X 32"h is the size for the duct opening measurement only

4" Clinch Base Side Metal Takeoff 18" Round Duct Pipe + How To Measure a+ Product Details Size & Compatibility The 4" clinch base side metal take off is compatible with duct 4" Superior Quality Made in the USA. Our clinch base side metal take off is made of high quality galvanized steel metal for durability and rust prevention. It has crimped ends for easy fitting and secure connection to consecutive duct joints Applications The Clinch base means its secured with clinching tabs. These tabs dig into the main duct when you