General description 2 Pack Cartridge Filter designed for Kärcher vacuum cleaners, including models WD1, WD2, WD2 Premium, WD3P, WD3 Premium, and others. This filter is made from high-quality materials to ensure optimal performance and longevity. Technical specifications Compatible with Kärcher models: WD1, WD2, WD2 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 Filter efficiency: removes 99.98% of dirt, hair, and small debris down to 0.3µm (0.00003mm) Material: Premium HEPA filter paper, Melt Blown Cloth, high-density ABS Usage The cartridge filter effectively eliminates odors, purifies the air, and absorbs harmful substances, ensuring a cleaner environment in your home. Its design prevents motor overheating, enhancing suction power and extending the vacuum cleaner's lifespan.