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. Dense blown fabric and HEPA filter paper with activated carbon particles eliminate fluffy odors, purify the air and harmful substances. No overheating of the motor thanks to good air permeability, for better suction power and life of the vacuum cleaner. High-efficiency filter: Made of high-strength and -friendly material, the high-efficiency H12 Hepa filter can remove 99.98% of dirt, hair and small debris down to 0.3m (0.00003 mm). filter for thorough cleaning of 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 you renew your vacuum's filter 3 months for optimal performance, especially in homes with children, pets or smokers. Colour:yellow Material:plastic Package Contents: 2 * Cartridge Filter Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.