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Royal Flush Cistern Blocks are specially formulated toilet freshening and cleaning blocks with slow-release fragrance and scale inhibitors to prevent limescale


Each block cleans and deodorises with each flush of the toilet, helping to prevent odours and blocked drains and waste pipe


  • Commercial formulation
  • Cleans, deodorises and freshens the toilet bowl with each flush
  • Helps to prevent limescale
  • Lightly fragranced for optimum benefit
  • Clean and economical
  • Long-lasting blue colour with added water
  • Softening agents to help reduce limescale deposits



  • Close the toilet bowl cover and remove the cistern lid.
  • Flush the toilet to empty the cistern tank
  • Place the block, including its wrapper (which dissolves in the water) into the cistern tank away from the water inlet
  • Replace the cistern lid
  • When the colour of the water starts to fade, add a new Royal Flush Cistern Block for continuous cleaning and protection



  • Store in the original sealed container in cool, dry conditions
  • Keep lid tightly closed when not in use
  • Keep out of the reach of children



  • Box of 12 Blocks - 1 Block Per Card
  • Tub of 24 Blocks

Royal Flush Cistern Blocks

SKU: G117
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