General description Cartridge filter for wet and dry vacuum cleaners, designed as a replacement multi-purpose filter compatible with various Karcher models including WD 2, WD 3, and others. Technical specifications Compatible with Karcher models: WD 2, WD 3.200, WD 3.300 M, WD 3.500 P, A 2003, A 2004, A 2054, A 2120, A 2504, A 2604, A 2656 X+, A 2111, A 2200, A 2201, A 2204, A 2206, A 2224, A 2231, A 2234, A 2236, A 2251, A 2254, A 2500, A 2504, A 2524, A 2534, A 2554, A 2574, A 2654, A 2675, A 2676, A 2901, A 3100, A 4000, K 2000, K 2150, K 2301, K 2901, K 4000, MV 3 (Premium), NT27/1, SE 4001, SE 4002, VC60000, WD 2.200, WD 3.200, WD 3.300, WD 3.500, WD 3.600, WD 3200, WD 3600 Replaces original filters: 6.414-547.0, 6.414-772.0, 6.414-552.0