ProTeam Spa Di Chlor is a great way to properly sanitize your spa or hot tub against bacteria and other organic contaminants. Its granular formula dissolves quickly to begin protecting your pool, while being stabilized against UV breakdown to ensure your pool has a consistent level of chlorine. Spa Di-Chlor can also kill off any algae growth in your spa or hot tub, letting you avoid buying a separate algaecide that could throw off your water balance. If you are looking for an easy and effective way to chlorine-sanitize your hot tub or spa, look no further than Spa Di Chlor. This product is made in the USA to ensure quality, allowing you to buy with confidence.