Hayward S230T932S 23-Inch Pro Series Sand Filter System with 1-1/2 HP 2 Speed Power-Flo Matrix Pump Pro Series sand filter system is designed for quick assembly and precise alignment of components Provides maximum flow energy efficiency and outstanding water clarity Filter base is molded of rugged thermoplastic for long-lasting, all-weather performance Features 7-position Vari-Flo valve provides maximum flow at low pressure drop Comes with 1-1/2-horse power 2 speed Power-Flo Matrix pump; measures 23-inch size