* Rain Soft Ultrefiner UFT and UFT RO System Compatible Replacement Water Filters And Reverse Osmosis RO Mem.nes RainSoft Hydrefiner.RainSoft home water treatment is a cost effective, efficient way to get better tasting, cleaner water for your home or business. Receive a free in home water test today..To speak to a professional about our water softener systems in Fresno, be sure to give Quality Home Services a today. Your estimate is on us!.Salt Free Water Systems. All of our filters are capable of being sodium free. Water Softeners Conditioners are sodium free by simply using pot.ium chloride pot.ium , readily available at many hardware stores and feed and grain stores, instead of sodium chloride salt ..