Rectangular Duct End Cap | 20" X 6" End Cap with filter actual front end outer dimensions

actual front end outer dimensions are 9" Width X 9" Height

This versatile diffuser is adaptable to various airflow needs

actual front end outer dimensions are approximately 22 5/8" width X 8 5/8" height

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a starting collar is installed for attaching a straight or split fitting for the ducts

Rectangular Duct End Cap | 20" X 6" End Cap with filter actual front end outer dimensions+ Product Details Size Duct end cap is 20" 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.