100% brand new and high quality, made of high-quality materials for enhanced durability Exquisitely crafted and precisely designed to match compatible equipment High-efficiency robotic cleaning filter effectively captures dirt, debris, leaves, dust, and diatoms to keep your swimming pool clean Durable plastic frame provides strong support to the filter layer and helps prevent breakage during operation Washable and reusable; filters can last 2–3 years with proper use. Flush every 4–6 weeks for optimal performance Compatible with: Dolphin Nautilus CC Plus, M4, M5, M400, M500, M200, Dolphin Triton Plus, Dolphin Wave 65 robot pool cleaners (NOT compatible with Nautilus CC) Equivalent to model 9991432-R4 Color: Black + White Material: Plastic Size: 26.5 x 17.5 x 1.5 cm Package Contents: 4 x Ultra-Fine Filters Note: Light reflection and differences in display screens may cause slight variations in color. Measurement allows an error of +/- 1–3 cm