Rectangular Duct End Cap | 10" X 10" End Cap w30h30 + Product Details Size -

+ Product Details Size - 22"w X 20"h X 2"d (for duct opening measurement only)

The total outer size of this grille is the listed size plus 1

+ Product Details Perfect Fit & Easy Sizing - Designed for a 12" x 28" or 28" x 12" duct opening (measured at the opening)

Every access panel has a front end frame that will overlap at the wall joint

as it can be mounted on drywall

Rectangular Duct End Cap | 10" X 10" End Cap w30h30 + Product Details Size -+ Product Details Size Duct end cap is 10" 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.