Rectangular Duct End Cap | 18" X 8" End Cap Wall Angle Register Boot Ideal for Walls & Ceilings:

Ideal for Walls & Ceilings: Designed for seamless installation in standard 10" X 6" duct openings

Design – The "W" shaped pleats give you more filter surface thereby capturing more dust

it is concealed and impenetrable

+ Product Details Perfect Fit & Easy Sizing - Designed for a 20" x 22" OR 22" x 20" duct opening (measured at the opening)

+ Product Details Perfect Fit & Easy Sizing - Designed for a 14" x 25" OR 25" X 14" duct opening (measured at the opening)

Rectangular Duct End Cap | 18" X 8" End Cap Wall Angle Register Boot Ideal for Walls & Ceilings:+ Product Details Size Duct end cap is 18" X 8" 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.