Universal Compatibility: With a diameter of 250mm, this duct fan is suitable for standard size ducting, making it suitable for a variety of applications Powerful Airflow: The Metal Duct Fan provides powerful airflow, improving ventilation and airflow in your space Rugged Construction: Made with high quality metal materials, this duct fan is designed to withstand demanding conditions and ensure long-lasting performance Quiet Operation: Equipped with high-quality motor, this duct fan runs quietly, reducing noise interruptions while ensuring efficient airflow, ensuring a comfortable and peaceful environment Easy installation: Versatile design Suitable for wall and ceiling installations, offering flexibility in positioning