Beachcomber Care Free Boost is a pH neutral, granular low chlorine disinfectant that kills bacteria, viruses and pathogens in your hot tub water. It also prevents the future growth of these harmful organisms in your hot tub water. Care Free Boost has an available chlorine content of 62% and has a relatively neutral pH value of 6.7. Care Free Boost is designed to use in conjunction with our conditioner Care Free. Together they work to condition and sanitize your hot tub water.