Compatible Cartridge Filter for 9991425 R4 Robotic Pool Cleaner Keep your pool water clear and equipment running at peak performance with this ‑quality replacement cartridge, engineered for the 9991425 R4 robotic pool cleaner. Designed for exact compatibility, it ensures a secure fit and maintains efficient cleaning performance. Key Benefits: Precise Compatibility: Built specifically for the 9991425 R4 robotic pool cleaner for seamless installation and reliable operation. Filtration: Fine pleated paper captures sand, sediment, leaves, and other debris more effectively than standard fabric filters, helping maintain clean, inviting water. Durable Construction: Thick, pleated fabric and sturdy structural design resist wear from frequent use and rough handling. Washable and Reusable: Easy to clean for repeated use, reducing the need for frequent replacements and helping to lower ongoing maintenance costs. Cost‑Effective Maintenance: Reusability minimizes waste and replacement expenses, allowing more time and money to enjoy the pool instead of maintaining it. Practical Use Scenarios: 1. Regular pool cleaning to remove fine particles after storms or heavy winds, keeping water clear and safe for swimming. 2. Seasonal upkeep before opening the pool to capture accumulated debris from winter months. 3. Routine maintenance during ‑use periods, such as holidays or parties, ensuring pool hygiene and performance. Specifications: Model Compatibility: 9991425 R4 robotic pool cleaner Function: Replacement cartridge filter for debris and particle removal Material: Thick pleated paper with durable structural frame Performance: Fine filtration for improved water clarity and cleaner operation of the robotic unit This cartridge offers a reliable, long‑lasting filtration solution tailored to your 9991425 R4 robotic pool cleaner, helping ensure clean water, efficient equipment, and reduced maintenance costs season after season.