- Compatibility: Designed for pool robots such as Active 20 and Active 30, and other compatible models, this 4-piece set provides a straightforward upgrade to your cleaning performance. - Superior filtration: Ultra-fine mesh captures fine dirt, sand and deposits, helping to keep pool water clear and reducing the need for frequent manual cleaning. - Reusable and easy maintenance: Remove the filter plates and rinse with a garden hose to remove gathered debris; repeated cleaning does not reduce filtration efficiency. - Easy installation: Each panel is numbered for simple placement in your robot’s filter basket; no special tools or technical expertise required. - Use scenarios: ideal for regular maintenance with Active 20/30 to maintain water clarity; after storms or windy days when fine sand enters the pool; during seasonal filter refreshes to extend the robot’s service life and minimize manual cleaning.