Hayward Pro Series 21" Sand Filter Lateral Assembly item code: SX210DA is an essential replacement component designed specifically for the S210T filter system. This precision-engineered lateral assembly includes the center pipe and all necessary components to restore optimal water flow and filtration efficiency. Constructed from high-quality, chemical-resistant materials, this genuine Hayward replacement part ensures proper distribution of water through your sand filter media, maximizing filtration performance and extending the life of your filtration system.