SHP series architectural slot diffusers are designed specifically for integration with Armstrong Ceilings DesignFlexTM Shapes ceiling systems. These 3-sided triangular and 4-sided parallelogram diffusers offer superior architectural design while meeting strict performance requirements. Shapes diffusers come with fully adjustable pattern controllers that can be field adjusted from the face of the diffuser to provide vertical, angular or horizontal throw, and can be gradually dampered or fully shut off in order to achieve a full 1, 2, 3, or 4-way air pattern.