Rectangular Duct End Cap | 12" X 10" End Cap steel + Product Details Size –

+ Product Details Size – 22" x 36" or 36" x 22" is the size for the duct opening measurement only

75" Height - SEE BELOW IN DESCRIPTION HOW TO MEASURE A GRILLE

+ Product Details Size - 36"w X 24"h is the size for the duct opening measurement only

+ Product Details Size - 4"w X 24"h is the size for the duct opening measurement only

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Rectangular Duct End Cap | 12" X 10" End Cap steel + Product Details Size –+ Product Details Size Duct end cap is 12" X 10" 26 gauge galvanized steel end cap, rectangular shape. Premium Quality Our rectangular duct cap is made of high quality galvanized sheet metal material (galvanized steel construction for durability and rust prevention). Made in the USA. Applications The product is used for stopping all types of fittings and also used to terminate a rectangular duct run in an HVAC application with a rectangular duct cap.