51CC, 51CCD, 61CC, and 61CCD Series Curved Blade Diffusers feature individually adjustable deflectors and are integrated in a modular sized panel to suit many ceiling systems. If ordered with directional vanes, a 1 or 2-way discharge pattern is available. If directional vanes are not required, the curved blade deflectors are offered in a 1, 2, 3, or 4-way discharge pattern.