Jandy AquaPure R0452400 PLC1400 Replacement Saltwater System 3-Port Cell Only New Jandy R0452400 PureLink 3-Port 14-Blade Replacement Salt Cell For pools up to 40,000 gallons The AquaPure system utilizes water softening technology to provide wonderfully smooth, and gentle-on-the-skin water for swimming Chlorine is generated automatically and naturally in your pool. Once the chlorine's purification work is done, it automatically converts back to salt, to be used over and over again 3-Port cell has 90 plumbing flexibility, durable housing, sensor integrated into third port and larger unions for easy installation