Keep your pool water crystal clear with the Intex Krystal Clear Sand Filter Pump, designed for simple, efficient filtration. Using a durable sand filter, it delivers cleaner water while saving time and maintenance costs-sand only needs replacing every 5 years. Hydro Aeration Technology enhances circulation and filtration for improved clarity and freshness.The system offers six functions-filter, backwash, rinse, recirculate, drain, and close-covering the full pool maintenance cycle. A built-in digital timer allows automatic daily operation for up to 12 hours, ensuring safe and convenient use. This bundle includes a 50 lb bag of OptiFlow Premium Pool Filtration Sand, made from high-quality silica to effectively trap dirt, debris, and impurities. Its engineered angular grains improve filtration efficiency, support better water flow, and reduce the need for frequent backwashing. Designed for durability and consistent performance, OptiFlow creates a stable filter bed that prevents channeling. Enjoy cleaner, clearer, and safer pool water with this reliable, low-maintenance filtration system.