Perfect compatibility: cartridge filter for Krcher 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, KNT 2 Premium Premium Materials: Using premium HEPA filter paper and Melt Blown Cloth, the product is made of high density ABS material according to the original size. Dense blown fabric and HEPA filter paper with activated carbon particles eliminate fluffy odors, purify the air and absorb harmful substances. efficiency filter: made of highly resistant and environmentally friendly material. environment, the highly efficient H12 Hepa filter can remove 99.98% of dirt, hair and small debris down to 0.3m (0.00003mm). Powerful filter for deep cleaning your home. Easy to use and install: The filter is easy to install and durable. Replacement in seconds without contact with dirt. These vacuum parts can be washed and reused. It is recommended that you renew your vacuums filter every 3 months for optimal performance, especially in homes with children, pets or smokers. Product Type: 2 filters compatible with Krcher 6.414-552.0 / 64145520 with locking clips and fixing screws, vacuum cleaner filter for Krcher WD2, WD 2.200, WD 2250,WD 2500,WD3, WD3 P, WD 3.300, WD 3.500 P, WD 3.600 , WD 3200, WD 3200, WD 0, WD 36 00, WD 3.800, A2004, A2054 ME, A2204, A2200, A2254, A2604, KNT 2 Premium, SE 4001, SE 4002.