Sirona Spa Care Chlorinating Granules Specifically formulated for spas and hot tubs, our concentrated hot tub chlorine granules effectively sanitizes and shocks hot water to keep it clean and clear for a fully soothing experience. The formula in our hot tub chlorine granules combines a sanitizer and shock treatment in one Sanitizes hot spa water for clean, rejuvenating results in spas and hot tubs Concentrated hot tub chlorine granules keep your spa clean for soothing results Keeps spa water clean, clear and relaxation-ready Enjoy the healing powers of clean, healthy Sirona™ spa water
