NEW!! Box System "Systainer", Size 2 (height approx. 15,5 cm). Filled with polyester folded filter cassettes FKP 4800 M Advanced (1 set = 2 pcs.). Fixable to vacuum cleaners with rail (smartfix) of the series "iPulse". Boxes are stackable. Vacuum cleaners of the iPulse model "Basic" (without smartfix) can be upgraded (Art. 445106).