HTH Super Shock Treatment (6-Pack)

Shock treat your pool at least once a week to kill unwanted bacteria and algae. Shocking gives your pool the boost of chlorine it needs to keep the water clean and clear. The HTH Super Benefit: This is an effective shock product that is fast acting, fast dissolving, kills bacteria and algae and restores crystal clarity to pool water within 24-hours. It is easy to use and contains no cyanuric acid (CYA), which means NO RISK OF OVER-STABILIZATION.