8" RADIAL DAMPER - Control Your Airflow on drop ceiling grilles (8" round duct opening) Aluminum - Cube Core Actual Filter Size – 17

Actual Filter Size – 17 3/4"w x 15 3/4" x 1"

+ Product Details Size - 30"w X 4"h is the size for the duct opening measurement only

75 Width X 13

+ Product Details Size & Compatibilty - The 12" to 10" round metal pipe reducer & increaser 30 gauge is compatible with duct 12" to 10"

75"H – fits a 12" X 12" duct opening

8" RADIAL DAMPER - Control Your Airflow on drop ceiling grilles (8" round duct opening) Aluminum - Cube Core Actual Filter Size – 17+ Product Details Size 8" round duct opening Heavy Gauge Steel Heavier gauge than needed, built for durability and long life in mind, but still very thin. Installation Easy to Install. Design This airflow control component are made to connect to HVAC diffuser and restrict airflow. + Product Description Introducing the 8" Radial Damper Your Solution for Controlled Airflow Experience enhanced indoor comfort with our 8" Radial Damper. Designed to