American Louver

This radial balancing damper is designed for HVAC professionals and maintenance teams who need to regulate airflow at air vents. It fits 12-inch-neck diffusers and lets users adjust the vent opening...

This 2-pack of radial balancing dampers is for HVAC professionals and facility maintenance teams adjusting airflow at air vents. Each damper helps regulate the opening at compatible diffuser necks to...

This 6-inch radial balancing damper is for HVAC professionals and facility teams who need to regulate airflow at air vents. It installs on compatible diffusers to help balance air distribution...

This radial balancing damper is for HVAC professionals and facility teams who need to regulate airflow through vented diffuser systems. It fits 8-inch diffuser necks and allows users to adjust the...

This radial balancing damper is designed for HVAC professionals and facility maintenance teams who need to regulate airflow at vent diffusers. It fits diffusers with 8-inch necks and allows the vent...