The Unicel C-8418 Replacement Filter Cartridge is designed for the Jandy CS200 pool and spa filter, offering 200 square feet of filtration with high-performance 100% polyester Reemay material. With uniform pleats and a smooth surface, this cartridge provides excellent dirt-holding capacity, durability under pressure, and resistance to chemical degradation. Easy to maintain and clean, it ensures reliable filtration over time, making it a dependable choice for keeping your pool clean and clear throughout the swimming season.