SCALESWEEPER, Hard Water Descaler Unit, Protects Your Appliances Plumbing By Eliminating Lime Scale Residue Caused By Hard Water Without The Use Chemicals Or Salt, Helps Dissolve PreExisting Scale, Will Dramatically Reduce Corrosive Green White Lime Scale Residue On Sinks, Chrome Faucets, Toilet Bowls, Bath Tubs, Shower Heads, Glass, Tile Windows, No Dishwasher Scale Residue On Glasses, Plates Cutlery, Ultimate Protection Against Scale Build Up Scale Corrosion Inside All The Pipes Valves In Your Home, Works On Galvanized, Copper Or Pex Plastic Piping