[Perfectly Compatible] The cylindrical filters are suitable for WD3, WD2, WD1, MV3, MV2, A, K, KNT, NT vacuum cleaners. Compatible with compact battery models 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, MV3P, A2004, A2054 ME, A2101, A2120, A2204, A2254, A2604, A2654, K2000, K2150, K2301, K2901, K4000, KNT2 Premium. Replaces filter: 6.414-547.0, 6.414-772.0, 6.414-552.[High-Quality Material Filter Element] Vacuum cleaner spare parts made with high-quality HEPA filter paper and melt-blown cloth. Constructed from high-density ABS material for precise fit. Dense melt-blown fabric and activated carbon particle HEPA filter paper help eliminate odors, purify air, and absorb harmful substances. Excellent air permeability prevents engine overheating.[High Efficiency Filter] Filter made from high-strength, environmentally friendly materials. Removes 99% of dirt, hair, and fine particles down to 0.3 microns for thorough home cleaning. Captures fine dust particles up to 40 microns (0.04 mm), including dust, smoke, viruses, and pollen.[Easy to Use and Install] WD2 filter for A2574, A2604, A2654, A2656, A2674, A2675, A2676, A2901, A3000, A3100, A4000, A2000, K2000, K2150, K2301, K2901, K4000 is easy to install and can be changed in seconds without dust exposure. These vacuum parts are washable and reusable. It is recommended to replace the vacuum cleaner filter every 3 months for best performance.Color: Yellow Material: Plastic Package Contents: 3 x Filter 1 x Cleaning Brush Note: Light reflection and different displays may cause slight color variation between the image and actual item. Measurement allows an error of +/- 1-3 cm.