Enhance Vacuum Performance: Improve the efficiency of your Dyson DC30, DC31, DC34, DC35, DC44 Digital Slim, and DC56 vacuum cleaners with our 4-Pack Washable Pre-Filters. | | Perfect Compatibility: These pre-filters are a direct replacement for Part # 917066-02, ensuring they fit your Dyson vacuum perfectly. No need to worry about compatibility they are designed to work seamlessly. | | Cost-Effective Solution: Our washable pre-filters offer a budget-friendly alternative to replacing filters frequently. With this 4-pack, you'll have an ample supply of filters to keep your vacuum running smoothly for an extended period. | | Reusable and Washable: These filters are not only effective but also eco-friendly. You can wash and reuse them, making them a sustainable choice that reduces waste and saves you money in the long run. | | Easy Maintenance: Enjoy hassle-free maintenance. Replacing and cleaning these pre-filters is a simple process, and the benefits include better air qual.