Scaleout XP, Monarch's next best thing to a water softener introduces its new advanced technology which is a limescale control device that permanently removes and prevents the damage caused by hard water. Whilst reducing the impact of scale it is now more powerful in its performance and protection to remove existing scale and prevent new scale forming, is compact and easily installed, uses no electricity and is a scale inhibitor that gives permanent treatment.With Monarch's Scaleout XP the quality of the drinking water is not affected. During the limescale prevention process, no minerals or magnesium are removed. It is safe to drink all day, every day.Scaleout XP is Monarch's ultimate in permanent scale protection for the whole house and its appliances.