Compatible with Dolphin M400, M500, and 9991432 R4 robotic pool cleaners, this precisionengineered filter cartridge provides a fit for seamless installation. Designed to deliver consistent performance, it ensures hassle maintenance and filtration without any compatibility concerns. Key Features and Benefits: Fit and Easy Installation Specifically tailored for Dolphin M400, M500, and 9991432 R4 models to guarantee a secure and accurate fit. Simple to install, removing the complexity from routine maintenance tasks. Ultra Fine Filtration Advanced filtration technology captures fine particles, dust, and debris, helping maintain crystalclear pool water. This reduces contamination and ensures a cleaner, healthier swimming environment. Durable, Quality Materials Manufactured from PP, PET, and activated carbon, the cartridge is built to resist abrasion and wear over time, even with frequent use. The robust construction extends product lifespan, offering a costefficient solution for longterm pool upkeep. Efficient Cleaning and Reduced Maintenance Engineered for exceptional efficiency, this filter cartridge minimizes cleaning time by trapping contaminants effectively. Spend more time enjoying your pool, with less time devoted to maintenance. Practical Applications: 1. Ideal for residential pool owners using Dolphin M400 or M500 robotic cleaners to maintain water quality between regular servicing. 2. Suitable for commercial or community pools where fineparticle filtration is critical for large volumes of swimmers. 3. for seasonal pool opening or closing, ensuring debris and fine sediment are thoroughly removed to keep water in condition. By combining exact compatibility, advanced filtration capability, and longlasting durability, this filter cartridge offers a dependable solution for maintaining clean, clear water and reducing pool maintenance time year after year.