nederman bb680s nel 5 5sc industrial electric vacuum cleanerA very powerful, electrically (400V) driven suction unit suitable for general cleaning, suction of sanding grinding machines, pneumatic transport, etc. Standard with temperature protection, safety valve, main and pre filter with "filter category M". These filters are also available in absolute (Hepa) or washable polyester version. Highly effective return air cleaning ensures constant maximum suction capacity. Thermal protection is standard. Further