[Perfectly compatible] The cylindrical filters are suitable for WD3, WD2, WD1, MV3, MV2, A, K, KNT, NT, vacuum cleaners. For compact battery WD1, WD2, WD2 Plus, WD2 Premium, WD3P, WD3, WD3 battery, WD3 Premium, WD 2.200 to WD 2.250, WD 2.400 M, WD 2.500M, WD 3.200 to WD 3.800M, SE4002 MV2 MV2, . 3. MV3P, A2004, A2054 ME, A2101, A2120, A2204, A2254, A2604, A2654, K2000, K2150, K2301, K2901, K4000, KNT2 Premium, replace filter: 6.414. -547.0, 6.414-772.0, 6.414-552 [High-quality material filter element]: Vacuum cleaner spare parts high-quality HEPA filter paper and melt-blown cloth are used, and the product is made of high-density ABS material according to the size. Dense melt-blown fabric and activated carbon particle HEPA filter paper eliminate odors, purify the air and absorb harmful substances. Due to good air permeability, the engine will not overheat. [High Efficiency Filter]Filter made of high strength materials, environmentally friendly and efficient. The filter removes 99percent of dirt, hair and fine deposits down to 0.3 m for a thorough cleaning of your home. It filters fine dust particles up to 40 m (= 0.04 mm), such as dust, smoke particles, , viruses, pollen, . [Easy to use and install]WD2 filter for A2574, A2604, A2654, A2656, A2674, A2675 A2676, A2901, A3000, A3100, A4000, A2000, K20000, K215. 0, K23. 01, K2901, K4000 are easy to install and . Changes in seconds without exposure to dust. These vacuum parts can be cleaned and reused. It is recommended to replace the vacuum cleaner's wd3p filter every 3 months for optimal performance. Colour:Yellow Material:plastic Package Contents: 3 x Filter 1 x Clean Brush Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.