A Strong Concentrated Universal Cleaner For Use In All Kinds Of Heating Systems In Which Water Based Liquids Are Used. Due To Its Alkaline Composition It Quickly And Efficiently Removes Corrosion, Salts And Crystals That Sludge The Heating Systems. When Used Correctly, Plumbflush Is Completely Safe For Synthetic Materials, Rubber, Copper, Aluminium And Cast Iron. Plumbflush Removes Fixed Deposits And Therefore Improves The Efficiency Of The Circulatory System.Concentrated Heating