Reverse Osmosis Systems | State Soft Water Premium Bottled-Quality Water Direct From Your Kitchen Tap For the ultimate peace of mind when it comes to your family's drinking and cooking water, an Under-Sink Reverse Osmosis (RO) System from State Soft Water delivers unparalleled purity. By stripping away up to 99% of dissolved solids, heavy metals, and unseen pollutants, our RO systems transform your tap water into clean, crisp, and refreshing water right at the point of use. While basic pitcher filters only address coarse particles and chlorine taste, multi-stage reverse osmosis removes microscopic chemical additives, heavy metals, and dissolved contaminants that standard filtration leaves behind.