Harpic Active Blue Freshener Cistern Block

Harpic Active Blue Freshener Cistern Blocks work in your cistern to create a powerful blue foam every time you flush your toilet. The detergent is released evenly across the bowl to help you maintain a clean and deodorised toilet and prevent the build up of stains.

  • Powerful foaming cleaning
  • Releases strong blue detergent with every flush
  • Deodorises
  • Fights germs
  • Prevents stains
  • Dissolves when finished, so touch-free and hygienic
  • Prevents the build-up of dirt and grime
  • Constantly cleans
  • Let’s you know when it needs replacing by fading
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How to use


Available in our fresh classic scent: Active Blue twin refill

How to use

1. Remove cistern cover. 2. Remove Harpic Active Blue Freshener from the plastic blister pack. 3. Flush the toilet and drop in the block complete with wrapper near the float and away from the inlet. 4. Replace the cistern lid. After several flushes, the wrapper will dissolve and the blue cleaner will appear. 5. Replace the block when the blue colour disappears from your water.

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