Swim in Clear Water Anytime: This high-performance sand filter circulates up to 65 GPM for smooth water flow and fast cleaning. Enjoy fresh, clear pool water whenever youre ready to dive inno long waiting for filtration Built for Long-Lasting Use: No frequent replacements needed. Made from corrosion-resistant polymer, this swimming pool sand filter resists rust, impact, and harsh conditions. It withstands rain, sun, and freezing winters without damage 7 Modes, Easy to Operate: This sand filter for above ground pools features 7 simple modes: Filter, Backwash, Rinse, Recirculate, Waste, Winter, and Closed. We recommend using #20 silica sand for optimal filtration performance Simple Maintenance & Installation: Designed for easy care, the sand filter for inground pool includes a drain plug that slows water flow to avoid freezing and simplify winter upkeep