Rectangular Duct End Cap 8" X 6" End Cap 26-Gauge Galvanized Steel Metal Color_White Tamper-Proof Security – Features a

Tamper-Proof Security – Features a robust design to prevent unauthorized access and protect your thermostat settings

rattle free airflow for your air-conditioning and heating system as well as smooth opening and closing back dampers

+ Product Details Size – 20" X 20" is the size for the drywall opening measurement only

+ Product Details Size - 36"w X 18"h is the size for the duct opening measurement only

Rectangular Duct End Cap 8" X 6" End Cap 26-Gauge Galvanized Steel Metal Color_White Tamper-Proof Security – Features aAbout this item: MATERIAL QUALITY Our rectangular duct cap is made of high quality galvanized sheet metal material (galvanized steel construction for durability and rust prevention) SIZE & SPECS The size of a Duct End Cap is 8 X 6. 26 gauge galvanized steel end cap, rectangular shape. 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