Triple action Flush 2000 will clean, sanitise and protect to keep your toilet looking clean and smelling fresh for up to 2000 flushes – that's likely to be a few months for most households. Simply place into the toilet's cistern and within 24 hours it will go to work, with every flush of ocean blue water sanitizing and removing limescale and stains, which means less scrubbing and less cleaners. Biodegradable and non-toxic, it's the eco-friendly way to keep your toilet looking and smelling clean. Please allow up to 7 days for the product to be fully activated. A plastic and glass container, it's safe for all septic tanks. Long-lasting freshness with every flush.