The only multi-port commercial valve that uses countercurrent, soft water regeneration right out of the box. Powered by Kinetico's breakthrough lightweight 2%u2033multiport Hydrus™ valve, the Hydrus Series uses up to 40 percent less salt and reduces wastewater by up to 30 percent. - Simple operation for ease of use - Modularly expandable, allowing for additional tanks to meet future increased flow requirements - Elite Smart Start, the most advanced controller on the market today - High-flow distributors provide minimal pressure loss - Dual-layer under-bedding improves water distribution, increases salt and -water efficiency, and reduces pressure loss - Only multi-tank softener system certified to NSF-44 standards