The seamless integration of the slot diffuser into the ceiling, combined with improved performance, makes it an excellent choice. The design objective of the DFBD-1 model flow bar is to suit ceiling-mounted applications and be flush with ceiling tile. The interior has a high-end finish because there is no visible flange and a black opening visible through the ceilings, providing the interior with an elegant look. Flow bars can handle higher air volumes per length for the same opening than standard slot diffusers. The deflector, which is located between the two U channels, plays an important role in controlling the direction of airflow. The U channels are smoothly riveted with outer profiles. Two types of flow bar diffusers, decorative and flanged are available with slot width options as below: