General Description This pleated filter for robotic pool cleaners is designed to effectively remove dirt and debris from your pool, such as leaves, dust, and diatoms, ensuring crystal clear water. Technical Specifications Material: ABS plastic frame, sturdy and durable. Dimensions: 26.5 x 16.5 cm each. Quantity: Package includes 4 pieces. Compatible Model Number: 991432-R4. Compatibility and Accessories Compatible with Dolphin Nautilus CC Plus, M400, M500, M200 robots. Installation To install the filter, remove the old filter from the cleaner and replace it with the new filter, ensuring it is securely in place. Use Use this filter to keep your pool clean by replacing it regularly to ensure optimal filtration. Other Information Note: Due to manual measurement, the size may have an error of 2 cm/1 inch. Colors may vary slightly due to different screens and angles.