Rectangular Duct End Cap | 12" X 10" End Cap Color_Anodized Aluminum providing efficient performance of up

providing efficient performance of up to 300m3/h

+ Product Details Size – 34"w X 22"h is the size for the duct opening measurement only

it's built to last and will never rust

+ Product Details Size – Duct end cap is 18" X 10" | 26-gauge galvanized steel end cap

Actual Filter Size – 23 3/4"w x 21 3/4" x 1"

Rectangular Duct End Cap | 12" X 10" End Cap Color_Anodized Aluminum providing efficient performance of up+ Product Details Size Duct end cap is 12" 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.