Xtremeclear 2-Pack Bundle 3" Swimming Pool Chlorine Tablets | 99% Pure Tri-Chlor| | Pro-Grade Pool Sanitizer Long Lasting & Slow Dissolving | 5 LBSBrand: XtremepowerUS Features: Saving Money Having our chlorinating tablets, you don't need change the frequently, 1 tab helps you saving about 5,000 gallons of water Active Ingredients Our pool tablets are pro grade made from 99% Trichloro S Triazinetrione and 90% stabilized chlorine Versatile Application The chlorine tabs are perfect for Above or Ingound swimming pools, hot tubs, spa, hot spring pools, water parks, even for toilets (Value Pack 2)