Features: 1. Ultra-fine pleated fiber filters effectively capture dirt, debris, leaves, and dust from your pool. 2. ABS plastic frame provides solid support and prevents filter damage during operation. 3. Washable and reusable design; lasts 2-3 years with proper care. Rinse every 4-6 weeks for best performance. 4. Compatible with numerous Dolphin robotic pool cleaners including M400, M500, M200, CC Plus, M5, Triton Plus, Wave 65, and more (not for CC old models). 5. Package includes 4 filter cartridges and a cleaning brush for easy maintenance. Product Details: Specifications: - Size: 10-1/2 x 6-3/8 inches (26.5 x 17.5 x 1.5 cm) - Color: White & Black - Material: ABS plastic frame with pleated fiber - Part Number: 9991432-R4 - Package: 4 x Ultra-Fine Filters + 1 x Cleaning Brush Note: Colors may vary slightly due to lighting and display settings. Measurement tolerance: +/- 1-3 cm.