Fil-fresh Robotic Pool Cleaner Filter Compatible with Dolphin m400, m500, Nautilus CC Plus, 4-Pack Ultra-Fine Filter Replacement Maytronics 9991432-R4

The Fil-fresh high-efficiency robotic cleaning filter removes dirt and debris from the swimming pool, such as leaves, dust and diatoms. It makes your swimming pool spotless. ABS plastic frame, more durable. At the same time it can firmly support the filter layer and prevent it from breaking during operation. Washable and reusable, these filters can last 2-3 years if used properly. Flush the filter every 4-6 weeks for best performance. Compatibility: The precisely designed robot cleaner replacement filter kit is fully compatible with Dolphin Nautilus CC Plus, M400, M500, M200 robot pool cleaners. Dimensions: Each 10-1/2 "x 6-3/8", the package includes 4 pieces, the same as the original model 9991432-R4.