Perfect Compatibility: Cartridge filter for 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 plastic, the product is made of high-density ABS material according to the size. The dense blown cloth 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 high strength and environmentally friendly material, the high efficiency H12 Hepa filter can remove 99.98% of dirt, hair and small debris down to 0.3 µm (0.00003 mm). Powerful filter for deep cleaning of your home. Easy to use and install: The filter is easy to install and . Replacement in seconds without contact with dirt. Vacuum parts can