The Helios FR 315 is a robust galvanized steel flange designed for seamless connection of circular flanged fans to round duct systems. Precisely manufactured to match the fan’s diameter and hole pattern, it allows for easy attachment via flexible connectors or direct duct mating. Suitable for a wide range of ventilation setups, this flange is part of a comprehensive series available in sizes from 180 mm to 710 mm, making it ideal for reliable airflow management in various applications.