Rectangular Duct End Cap | 18" X 10" End Cap Color_R-4.2 Yellow Filter Size - 20

Filter Size - 20

+ Product Details Size - 6"w X 34"h X 2"d (for duct opening measurement only)

Actual Filter Size – 29 3/4"w x 19 3/4" x 1"

actual front end outer dimensions are approximately 27 5/8" width X 12 5/8" height

with actual front end outer dimensions of 10"

Rectangular Duct End Cap | 18" X 10" End Cap Color_R-4.2 Yellow Filter Size - 20+ Product Details Size Duct end cap is 18" 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.