St. Paul, Minn.-based EcoWater Systems announces its new five stage reverse osmosis (RO) system. The ERO-B524 system is an advanced drinking water system certified by NSF International, and makes EcoWater’s RO product line the broadest among major brands. To maximize efficiency and conserve water, an automatic control shuts down the system when the storage tank is filled and water is not being drawn. Unlike competitive units, the ERO-B524 eliminates the constant running of water to the drain.