8" RADIAL DAMPER - Control Your Airflow on drop ceiling grilles (8" round duct opening) Black these heavy-duty louvers are ideal

these heavy-duty louvers are ideal for use in attics

Please check the measuring guide to ensure a proper fit

+ Product Details Size – 25"w X 18"h is the size for the duct opening measurement only

+ Product Details Size - 28"w X 8"h is the size for the duct opening measurement only

8" RADIAL DAMPER - Control Your Airflow on drop ceiling grilles (8" round duct opening) Black these heavy-duty louvers are ideal+ 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