18 Sand Filter Pump for Above Ground Pool with Timer, 1.5 HP, Max 4900 GPH for Pools Up to 20000 GAL, 6-Way Valve Pool Sand Filter System, Enhanced Circulation for Crystal-Clear Pool. 1? Customized Filtration: The 24-hour programmable timer schedules filtration cycles in advance, keeping your pool crystal-clean effortlessly, saving energy, and maintaining optimal water circulation. 2? Maximum Flow of 4900 GPH: The 1.5 HP pool pump can pump up to 4900 gallons per hour, making it ideal for pools with a maximum capacity of 20000 gallons and ensuring fast, thorough water filtration. 3? Built to Last: Reinforced thermoplastic filter tank ensure the stability of filter system. Use copper motor with extended lifespan reduces energy consumption by 20%. Keep long-lasting, filtration, reducing the need for frequent maintenance. 4? 6-Way Valve: Features a 6-way valve with a stable and reliable symmetric channerl and anti-turbulence design. That easily adapts to different filtration needs, ensuring your pool environment stays crystal clear blue all summmer.