The 53 Sq Ft Sta-Rite® System 3 DE Grid Set is an essential replacement for the Sta-Rite System 3 S8D110 DE filter, providing 53 square feet of filtration. Designed for superior performance, this grid set ensures your pool or spa stays clean by efficiently trapping contaminants, leaves, and debris. Made with high-quality, durable materials, these grids provide excellent filtration and long-lasting reliability. The set includes 13 grids, each designed to hold Diatomaceous Earth (DE) powder, allowing for optimal filtration and maintaining water clarity by removing even the smallest particles.