Karcher 2.863-005.0 Pleated Filter (MV4-MV6 & WD4-WD6)Embedded in the filter box, the flat pleated filter can be replaced particularly conveniently and quickly and without any contact with dirt: simply fold out the filter box, change the filter, close the filter box and you're done! Other practical features: flat pleated filter enables wet and dry vacuuming without constant interruptions for annoying filter changes. Suitable for Krcher wet and dry vacuum cleaners in the MV 4 to MV 6 and WD 4 to WD 6