【Wide Compatibility】The replacement spare filter is compatible with Kärcher MV4, MV5, MV6, WD4, WD5, WD6, WD 5 P, MV 5 P, WD6P, WP5, premium multifunctional vacuum cleaners, wet and dry vacuum cleaners. 【Highly efficient filtering】The flat pleated filter has a powerful filtering function and can effectively clean dirt, carpet fibers and dust particles in the air. It can even filter fine particles such as dust, animal hair and pollen with a minimum size of 40 μm (= 0.04 mm). 【Washable and reusable】The kit filter accessories are made of high-strength material and are environmentally friendly, washable and reusable. Clean and replace the filter regularly to ensure your vacuum cleaner is always in top condition. 【Easy Installation】Tool-free installation thanks to the replacement filters for flat pleated vacuum cleaners. The flat pleated filter can be replaced in seconds by removing the filter element. The replacement is quick and convenient without touching the dirt. 【Wide Application】You