Rapid dissolving & stabilized for long-lasting sanitization; CleverSpa Stabilised Chlorine Granules are the most popular way to keep your hot tub water healthy. Your hot tub or pool needs to be chlorinated at all times. The ideal chlorine level is between 3 parts per million (ppm) and 5ppm. *Due to the hazardous ingredients and transport restrictions, we are unable to deliver this chemical product to Northern Ireland, Scottish Highlands, Channel Islands, Isle of Man, and the Isle of Scilly.
