Designed for a wide range of commercial and industrial applications, offering high airflow performance in a choice of duct sizes.Powerful and unobtrusive, the MET range have extract rates for many applications. Supplied with mounting feet for horizontal or vertical mounting. A comprehensive range of ventilation accessories available to cover most ducted applications.MET range incorporates a backward curved centrifugal impeller designed for large airflow against the resistance experienced in longer duct lengths. All models have 30mm long inlet and discharge spigots for easier duct work connection.Designed for use with electronic speed control.