Harpic Flushmatic In-Cistern Toilet Cleaner Blocks, Marine

Harpic Flush Matic toilet cleaning cistern block is a drop-in tank tablet which can be used for any accessible cistern. It works by creating strong foam every time you flush the toilet, which helps to maintain cleanliness in the toilet bowl. Harpic Flush Matic toilet cleaner works from inside the cistern to release a dose of powerful detergent with every flush.