FESTOOL Wet Filter NF-CT COMPFor CT MINI, CT MINI I, CT MIDI and CT MIDI I manufactured from 2019 onwards, CTC MINI MIDI and CT 15 and CT 25. For jobs where wet extraction is needed, protect your CT MINI or CT MIDI by using the Wet Filter Element to prevent foam build up inside the container from reaching the CT motor. Open cell foam sponge can be washed and dried quickly after each use. Includes 1 Wet Filter Element. Quick and clean filter replacement: Easy replacement of filter