Royal Flush Blue Cistern Blocks contain special water-softening agents, coupled with active cleaning power and sanitizers to reduce hard water scale and staining in toilet and urinal bowls.
Based upon our conventional Royal Flush Cistern Block delivering blue colour and chemical cleaning with the additional benefits of biological cleaning action.The water-softening and sequestering agents maintain a clean bowl, while the biological cleaning power works in the pipes to prevent the build-up of solids.Especially useful in small-bore, pumped toilet systems and older buildings where drain-runs can be problematic.