The Helios RR 150 C is a high-performance inline centrifugal fan designed for efficient ventilation through ductwork up to 315mm. Built to handle significant system resistance, this fan ensures strong and consistent airflow, making it suitable for medium-length runs of flexible or spiral ducting. It offers the dual advantages of high-pressure capability and straightforward installation, using the optional MK4 foot and simple pipe clamp connections. This makes it an ideal, budget-friendly choice for various ventilation needs where reliability and performance are essential.