Four Way Throw Right Angle Concentric Diffuser with Drum Louver Our concentric diffusers are designed to provide a single point air distribution system with the added benefit of allowing directional airflow. Diffuser features include an even 4 way airflow. This product is manufactured with square connections. If you need a round connection, contact us so we can create a special custom order for you. Click Here For Submittal 40-52 Click Here For Submittal 58-70
