10 Best chlorine tablets 2025

Looking for a way to keep your pool or hot tub sparkling clean all summer long? Look no further than our Top 10 Chlorine Tablets for Pools, Hot Tubs & Supplies. We reviewed and scored many products in the chlorine tablets category, ranging from a 7.6 up to an impressive 9.9 score. And the winner? Clorox's Pool&Spa XtraBlue 3-Inch Long Lasting Chlorinating Tablets. These 5-pound tablets are the gold standard for keeping your water crystal clear, with a formula that fights algae and bacteria for up to a week. So dive on in and discover the best chlorine tablets for your pool or hot tub - your swimsuit (and your guests) will thank you!