Rectangular Duct End Cap | 24" X 6" End Cap 8" Diameter + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 26" x 34" OR 34" x 26" duct opening (measured at the opening)

+ Product Details Size - 14"w X 28"h X 2"d (for duct opening measurement only)

Actual Filter Size – 24 3/4"w x 15 3/4" x 1"

But they are also the most visible representation of you air system

+ Product Details 18"w X 18"h is the size for the drywall opening measurement only

Rectangular Duct End Cap | 24" X 6" End Cap 8" Diameter + Product Details Perfect Fit+ Product Details Size Duct end cap is 24" X 6" 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.