Poolwell Pool & Spa Chlorine Tablets 1 inch for Swimming Pools-2LB, Size: 2 lbs, White

FEATURES: PoolWell Chlorine Tablets effectively keeps your pool water clean and healthy, make you fully enjoy swimming in clean and clear water in all season long PoolWell Chlorine Tablets not only applied to swimming pools, hot tubs, SPAs, but also to hot spring pools, water parks, even to toilets How to Use? Add 1 tab to every 10,000 gallons of pool water every other day or as often as needed to keep chlorine residual of 2-4 ppm. Increase dosage after heavy use, rain or high temperatures. Sun protected to longer chlorine life