Rectangular Duct End Cap | 10" X 8" End Cap Color_Aluminum 75"H – fits a 16"

75"H – fits a 16" X 8" duct opening

And The Cooler Air From Outside WIll Flow In From The Bottom

+ Product Details Size – 26"w X 30"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 9" width X 9" height -

Rectangular Duct End Cap | 10" X 8" End Cap Color_Aluminum 75"H – fits a 16"+ Product Details Size Duct end cap is 10" X 8" 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.