Harpic Flushmatic In-Cistern Toilet Cleaner Blocks, Marine – 150 g | Lasts Upto 240 Flushes

Quick acting and long-lasting, this toilet cleaning cistern block is a drop-in tablet which can be used for any accessible cistern. Working from inside the cistern, it releases a powerful dose of hygienic cleaning with every flush. It also distributes liquid across the bowl to help maintain a hygienic, fresh toilet while also preventing the build-up of stains. Safe for use with septic tanks and all other toilet cleaners.