Rectangular Duct End Cap | 6" X 4" End Cap Adjustable Return actual front end outer dimensions

actual front end outer dimensions are approximately 28 5/8" width X 16 5/8" height

+ Product Details Perfect Fit & Easy Sizing - Designed for a 34" x 28" Or 28" x 34" duct opening (measured at the opening)

+ Product Details Size – 20" x 32" or 32" x 20" is the size for the duct opening measurement only

Easy Installation – Comes with all necessary installation screws for a quick and hassle-free setup

actual front end outer dimensions are approximately 20 5/8" width X 32 5/8" height -

Rectangular Duct End Cap | 6" X 4" End Cap Adjustable Return actual front end outer dimensions+ 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.