Bionizer’s Spa Star is a safe and proven chlorine-free alternative for spa sanitation. It uses a dual sanitising system for spas, hot tubs and swim spas (incl. smaller pools) up to 15,000 litres. It has both an ionising function to sanitise the water as well as a powerful eco-oxidising function that rids hot water of clogging fats and lotions, and eliminates parasites such as crypto and fungus. Don’t Marinate in a Toxic Tub… Fit a Spa Star!