20 times the capacity of paper filter bags. No clogging with fine dusts (especially quartz dusts). Well suited for applications where large quantities of fine dust are generated (e.g. milling off plaster surfaces, grinding on and off screeds, etc.). Meet the requirements for M- and H-class vacuums. Ideal when using concrete and stone working machines, such as: Renovation grinders, renovation grinders, long-neck grinders, wall groovers, etc. Clean, easy and quick removal and disposal. Suitable forASR 36-18 BL 25 M SC / ASR 25 M SC.