Compatible with KFI 357 vacuum cleaner bags are designed to fit Krcher WD 2 Plus, WD 3, WD 3 Battery, KWD 1, KWD 2, KWD 3, MV 3, WD 3.200 to WD 3.800 M, SE 4001, and SE 4002 vacuum cleaners. These non-woven filter bags serve as a replacement for part number 2.863-314.0 and function similarly to the original. High-quality material ensures these replacement vacuum bags for Krcher WD2 are extremely tear-resistant, robust, and durable. They feature a high-quality plastic cover plate and utilize multi-layer sealing technology for improved hygiene and safety. This design significantly reduces the risk of leakage and provides excellent filtration performance, effectively capturing fine dust, hair, coarse debris, and damp dirt. These KFI 357 vacuum cleaner bags offer superior filtration with a 3-stage filter system composed of two layers of non-woven fabric and one layer of fine melt-blown fiber. This combination efficiently filters 99.97% of dust particles, dirt, and allergens as small as 2.5 microns, helping to maintain a healthier indoor environment. The vacuum bags are constructed with multiple layers of micro velvet material that is highly resistant to tearing and built for long-lasting use. They prevent dust and moisture from escaping, providing reliable protection for your vacuum cleaner and supporting optimal performance. Each package includes 8 vacuum bags for Krcher WD2 Plus models, making it easy to keep replacements on hand. Installation is straightforward. For best results, replace the bag regularly based on usage frequency. Customer support is available for any product-related inquiries.