HYA1013 Features: * Sand filter and filter base * Flange clamp design allows 360 degree rotation of valve to simplify plumbing * Integral top diffuser ensures even distribution of water over the top of the sand media bed * Full-size internal piping provides smooth, free-flowing performance * Integral sight glass lets you see when backwash cycle is completed * Large pressure sand / water drain for rapid winterizing or servicing * 6 Position, 1.5" valve, requires 350 lbs of sand * 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 for dependable, all-weather performance Specifications: * 7 Position vari-flo control valve with easy-to-use lever-action handle lets you dial any of the valve/filter functions Warranty: * 1 Year warranty