General description The cartridge filter is designed for perfect compatibility with various Kärcher vacuum cleaner models, including WD1, WD2, WD 2 Premium, WD3P, WD3 Premium, WD 3200, WD 3230, WD 3500, SE 4001, SE 4002, MV 2, MV 3, MV3P, A 2004, A 2054 ME, A 2101, A 2120, A 2204, A 2254, A 2604, A 2654, K 2150, and KNT 2 Premium. It features premium HEPA filter paper and Melt Blown Cloth, ensuring effective air purification and odor elimination. Technical specifications Filter type: H12 HEPA filter Filtration efficiency: Removes 99.98% of dirt, hair, and small debris down to 0.3 µm (0.00003 mm) Material: High-density ABS, HEPA filter paper, and Melt Blown Cloth Other information Size may vary slightly (1-3 cm) due to manual measurement Color may differ slightly due to monitor pixel variations