Hayward AquaPlus PL-PLUS 40K gal Control and Salt Chlorination with built in sub-panel, 4 relays, 3 valves, 1 heater, solar, and T-cell all-in-one pool and spa automation and salt chlorination. AquaPlus simplifies and enhances pool and spa ownership by combining control and salt chlorination into one easy-to-install, easy-to-operate package. With AquaPlus, programming essential functions for maximum performance, effectiveness and cost-efficiency is a snap. It lets pool owners set filtration and temperature schedules: steady all week, increasing during busy weekends, or cutting back on weekdays when activity is limited. They can even control other backyard features, including patio and landscape lighting, water features and firepits. And with a variety of remote controllers, they can program and manage it all from practically anywhere; indoors, poolside or even in the pool.