These vacuum cleaner bags are designed for Kärcher vacuum cleaners and fit all vacuum cleaner bags, 100% compatible with Kärcher models WD4, WD5, WD6, WD4P, WD5P, WD6P. For Kärcher MV4, MV5 and MV6, for Kärcher wet and dry vacuum cleaners WD4, WD5, WD5/P. Unlike original materials, Leadaybetter vacuum cleaner bags for Kärcher WD5 are made of thicker non-woven material for greater durability. They will not be punctured by sharp debris inside and will not leak. These Kärcher filter bags can be washed and reused. We recommend replacing the Kärcher WD5 bag every 2 to 3 months. To maintain the cleaning performance of Kärcher filters and reduce the penetration of dust, pollen, and other allergens into the air. Contains 12 vacuum cleaner bags for Kärcher WD4 WD5 WD6.