Inline centrifugal fans equipped with EC motors and impellers with backward curved blades. Air capacity up to 10850 m3/h. Designed for supply and exhaust ventilation and conditioning systems for various purpose premises requiring economic solution and controllable ventilation system. Compatible for connection with rectangular air ducts with cross sections s 600х300, 600х350, 700х400, 800х500, 900х500, 1000х500 мм.