Compatible with eufy Robot Vacuum Omni C28/X12 pro High Performance: Efficient filtration for C28's dirty water tank, extending usage time and providing convenience. Tool-Free Installation: Effortlessly replace your old filter with no additional tools required. Suggested Replacement Frequency: Replace every 3 months, depending on your usage frequency. Note: To protect your robot vacuum and extend its lifespan, we recommend using genuine eufy replacement parts. Using third-party parts may result in substandard performance.