HYA1023 Features: * Sand filter and filter base * Durable, flanged inspection cover provides convenient access to top of filter * Top diffuser ensures even distribution of water over the top of the sand media bed * All internal piping is 2" to give smooth, free-flowing performance * Automatic air relief purges any trapped air during operation of the filter system * Large pressure sand / water drain for rapid winterizing or servicing * Integral sight glass lets you see when backwash cycle is completed * Requires 300 lbs of sand * 6-Position, 1.5" side mount valve * Application: In-ground pools of all types and sizes, in-ground spas (residential or commercial), water features (fish ponds, fountains, water gardens) Construction: * Precision engineered umbrella-fold self cleaning laterals for balanced flow and backwashing, plus easy serviceability Color/Finish: * Unitized, corrosion-proof, filter tank molded of rugged, colorfast polymeric material dependable, all weather performance Specifications: * 6-Position vari-flo control valve with easy-to-use lever-action handle lets you dial any of the 6 valve / filter functions Warranty: * 1 Year warranty