Feel the difference with the Leisure Time Free® Sanitizing System. This biguanide-based sanitizing system is chlorine-free, brominefree, and hassle-free! Long-lasting and effective, the once-a-week Free system keeps water clean and clear. It’s a perfect solution for anyone with sensitive skin or looking for a fresh alternative to traditional sanitizers. Use the full range of Leisure Time Free® spa sanitizing solutions for a relaxing spa experience.