Top 18 Cistern Blocks
Discover the UK's favourite cistern blocks, see how shoppers rate them, and learn where you can buy them across 15 supermarkets.
9
What people say
“These make every flush smell fresh and the water now has some blue colour which is very clean looking”
“Very easy to use with superb results”
10
What people say
“These toilet blocks are a good way to keep the toilet fresh for longer”
“These do the job just as well as other leading brands”
11
What people say
“These are quick and easy to use and then they just do their thing! Every toilet flush I get a nice fresh smell and the water has a slight foam on it”
“I love the strong citrus smell that keeps away the "loo" smell”
14
What people say
“I love the purple colour as it is flushing but then water in the bottom of the bowl looks black almost as if someone very”
17
What people say
“These cistern blocks are fantastic”
