Compatible with the eufy Robot Vacuum 3-in-1 E20. Durable and Eco-Friendly: Washable and reusable after air drying for long-term use. High-Performance Filtration: Captures 99.97% of particles as small as 0.3 microns, ensuring cleaner air. Tool-Free Installation: Easily replace parts on your Robot Vacuum without any tools, simplifying maintenance. Note: To protect your robot vacuum and extend its lifespan, we recommend using authentic eufy replacement parts. We¡¯ve received complaints about non-compliant sellers offering substandard alternatives.