Powerful chlorine pool shock chemical offers 73 percent calcium hypochlorite to kill bacteria and algae faster than other pool shock. Compare to only 68 percent calcium hypochlorite in other pool shock chemicals. One weekly dose keeps your swimming pool ... [Y7910]

Powerful chlorine pool shock chemical offers 73 percent calcium hypochlorite to kill bacteria and algae faster than other pool shock. Compare to only 68 percent calcium hypochlorite in other pool shock chemicals. One weekly dose keeps your swimming pool ... [Y7920]

Powerful chlorine pool shock chemical works faster than other pool shock to kill bacteria and algae. Contains the most pool chlorine of any pool shock chemical. Swimming pool chemicals at In The Swim. ... [Y7930]

Safer chlorine pool shock chemical contains 45 percent calcium hypochlorite to give your pool a quick chlorine boost. Helps fight algae and bacteria and works well to simply brighten and polish dull water. ... [Y8300]

Safer chlorine pool shock chemical contains 45 percent calcium hypochlorite to give your pool a quick chlorine boost. Helps fight algae and bacteria and works well to simply brighten and polish dull water. ... [Y8320]

HTH Sock It chlorine pool shock chemical is safe enough to swim immediately after treatment and a strong enough pool chemical to quickly kill bacteria. Pool shock chemicals at In The Swim. ... [Y8340]

HTH brand pool shock treatment offers 53 percent calcium hypochlorite to control algae in your swimming pool. Fast acting and powerful pool shock chemical. ... [Y8350]