Rectangular Duct End Cap | 30" X 8" End Cap tools + Product Details Size –

+ Product Details Size – 24"w X 16"h pleated MERV 8 filter for HVAC return filter grille - 3 Pack

Ideal for Walls & Ceilings: Designed for seamless installation in standard 14" X 10" duct openings

+ Product Details Size – 12" x 18" or 18" x 12" is the size for the duct opening measurement only

and sound level range of NC 25 to 35

Rectangular Duct End Cap | 30" X 8" End Cap tools + Product Details Size –+ Product Details Size Duct end cap is 30" 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.