Rectangular Duct End Cap | 6" X 4" End Cap 10" Diameter + Product Details Size –

+ Product Details Size – 20"w X 10"h is the size for the duct opening measurement only

with actual outer dimensions of 34

actual front end outer dimensions are approximately 39

Example: If your hole is 20" wide by 14" tall

Having an HVAC Access Door will give easy access to the mechanical features of the system

Rectangular Duct End Cap | 6" X 4" End Cap 10" Diameter + Product Details Size –+ Product Details Size Duct end cap is 6" X 4" 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.