Rectangular Duct End Cap | 28" X 10" End Cap 6in diameter /* Blue text on hover

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+ Product Details Perfect Fit & Easy Sizing - Designed for a 30" x 24" OR 24" x 30" duct opening (measured at the opening)

For added protection

This 26" X 8" end cap is constructed with 26-gauge galvanized steel

actual front end outer dimensions are approximately 26

Rectangular Duct End Cap | 28" X 10" End Cap 6in diameter /* Blue text on hover+ Product Details Size Duct end cap is 28" 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.