OnGuard 1" Maxi-Clor Chlorinating Tablets offer the same convenience and performance as Kem-Tek brand chlorinating tablets at a better price. Read more about the OnGuard 1" Maxi-Clor Chlorinating Tablets.
I use two tablets at a time in a floating dispenser in a four-person hot tub. Even after months of use, but continually using these tablets (with short rests in between of maybe a day or two here and there), my water always looks pristine without a heavy bleach smell. This single container lasted more than six months, so they go a long way.