The Titus PAR Steel Perforated Return Diffuser in a pack of 2 is designed for HVAC and refrigeration systems. Specifically sized at 16x16 inches, these white diffusers are manufactured by Titus, a trusted brand in the industry. The steel construction and perforated design allow for efficient air circulation and return within a commercial or industrial setting. Perfect for ensuring proper ventilation and air quality control, these diffusers are a reliable choice for HVAC professionals and businesses looking to maintain a comfortable and healthy indoor environment.