1 x large 100 gram block lasts up to 1 month

The Probiotic Cistern Block is a highly concentrated, eco-friendly toilet care solution designed to save water, eliminate odours, and support healthy septic and plumbing systems. Powered by an industry-leading 9-enzyme system, it provides unmatched odour control and natural cleaning with every flush.

Thanks to its advanced probiotic action, users can urinate up to 10 times without flushing, helping households and businesses save thousands of litres of water every month or reducing the need to flush at times when water is scarce. Each block delivers continuous, automatic cleaning for up to 1 month, making it a powerful, hands-free solution for everyday hygiene.

At the heart of this cistern block is green probiotic power, secreting the exact enzymes needed to rapidly break down organic matter into carbon dioxide and water, they continue working long after each flush—creating a cleaner, healthier environment inside your plumbing system.