Rectangular Duct End Cap | 30" X 12" End Cap sidewall this access door ensures a

this access door ensures a secure fit

Actual Dimensions: 21

Installation Location – sidewall and ceiling

+ Product Details Size – Duct end cap is 18" X 6" | 26-gauge galvanized steel end cap

actual front end outer dimensions are approximately 20 5/8" width X 28 5/8" height

Rectangular Duct End Cap | 30" X 12" End Cap sidewall this access door ensures a+ Product Details Size Duct end cap is 30" X 12" 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.