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. No overheating of the motor thanks to good air permeability, for better suction power and longer life of the vacuum cleaner.High 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 vacuum"s 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. About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks for your cooperation and we"ll make you feel satisfied.