Made of high-quality materials for enhanced durability. Exquisitely crafted and precisely designed to be compatible with the equipment. High-efficiency robotic cleaning filter effectively removes dirt, debris, leaves, dust, and diatoms from swimming pools, helping keep your pool clean and spotless. Features a sturdy plastic frame that provides strong support to the filter layer and prevents breakage during operation. Washable and reusable, these filters can last 23 years with proper use. Flush the filter every 46 weeks to maintain optimal performance. Compatible with Dolphin M400, M500, and M200 models. Color: As shown in photo. Material: Plastic. Package Contents: 7 x Filter. Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement may vary by up to 13 cm.