Thanks to the latest EC technology, Rhino Ultra fans can be controlled silently from 0 to 100% speed. The fan is easily controlled using a speed controller supplied. If more control options are required, adapters can be used to connect them to any EC-GAS controller. All Rhino Ultra fans are compatible with odor filters and offer high airflows at high pressure. They are energy efficient, have a closed steel housing and a soft start function. The wall brackets in the fan housing make installation easy and the energy consumption is low compared to AC fans. Technical specifications: Flange diameter: 125 mm, Max. airflow: 280 m3/h, Power consumption: 20 W.