XtremeClear 5lbs 1" Chlorine Tabs for Swimming Pool Hot Tub & Spa Eliminate Bacteria & Algae Sanitizer Makes Water Clean & Crystal Clear Slow Dissolving, 5-PoundsBrand: XtremepowerUS Features: Versatile The chlorine tabs are perfect for above ground swimming pools, hot tubs, spa, hot spring pools, even for toilets. Chlorine Tabs dissolve slowly and last up to one week Compatible With All Pools Great for all pool types, including saltwater systems; Use 1" tabs for above ground pools. Use in floater, feeder, or skimmer basket (Floating Tablet Dispenser Sold Separate ASIN: B07193P5HZ) Long Lasting Chlorine Tabs