Bloo Colour Active Toilet Rim Blocks give a visible, blue-water clean with every flush. Each block has a 4-in-1 formula: (1) cleaning foam to wash the bowl, (2) anti-limescale to help stop build-up, (3) dirt protection to reduce new soiling, and (4) extra freshness with odour-stop technology. The coloured water shows they’re working, and each block can last up to 240 flushes depending on water flow and usage. Just hook the block on the rim, in the flow of the water.

This wholesale/multipack contains 3 sleeves, each with 3 blocks (9 blocks total) — ideal for stocking up at home or for rental/cleaning work. Suitable for most standard toilets and safe for septic tanks when used as directed.