This adjustable diffuser is designed for universal air supply and exhaust ventilation. It features a 100mm / 4'' size for compatibility with standard ventilation systems and air ducts, ensuring easy integration. The diffuser is constructed from durable ABS plastic for long-lasting performance and resistance to wear and tear. Its versatile design makes it suitable for various applications, including HVAC systems, general ventilation, and air conditioning units. The rotatable front plate allows users to easily adjust the airflow intensity. Installation is straightforward with the included sturdy mounting ring for secure and hassle-free fitting into your ventilation system. Weight: 0.34 pounds, Manufacturer: EUROPLAST