9991433-R4 Spring Filter Panels, Part Number: 9991432-R4. Replacement filters compatible with the following Dolphin Robotic Pool Cleaners: CC Plus (not for CC), M400, M500, Odyssey, Oasis Z5i, Triton Plus (old), XL, C3, C4. Dimensions: 10-1/2 inches x 6-3/8 inches. Designed for easy filter replacement, helping maintain clean and efficient pool cleaning performance. A fresh filter helps capture dust, leaves, diatoms, hair, and other debris, reducing secondary pollution. The filters are essential for optimal pool cleaner operation. Clean or replace filters when worn or difficult to clean. Improves device cleaning performance by removing 99.9% of particles, including odors, smoke, pet dander, and dust, down to 0.1 micrometer in size. Captures finer particles than HEPA H11 (0.3 micrometer). Features an ABS plastic frame with pleated fiber filtration media. Durable, washable, and reusable, designed for a service life of 2–3 years. Rinse the filter every 4–6 weeks for best performance. Advantages: 1. The robotic pool cleaner operates independently; the pool pump does not need to run. 2. Cleans pool walls and floor effectively. Fine mesh filter captures fine dirt from water. Easy to clean. 3. Micro-screen filter traps silt, sand, grass clippings, pet hair, and pine needles. Color: Black + White Material: Plastic Package Contents: 8 x Pool Filters Note: Light reflection and display differences may cause slight variations in color between the image and the actual item. Measurement tolerance: +/- 1–3 cm.