DryTec Extra Shock 73% Calcium Hypochlorite, 12 lb
DryTec Calcium Hypochlorite Extra Shock dissolves fast. This robust start-up shock helps maintain and improve the appearance of your pool water by preventing algae growth. DryTec Extra Shock kills bacteria, controls algae, removes contaminants, and raises chlorine levels to make the water sparkling clean.
Item # 225004P