With a versatile, 4-in-1 formula, the Clorox Pool and Spa Shock Plus is an easy way to keep the water sparkling clear. The fast-dissolving design clears cloudy water and removes organic contaminants, reduces chlorine odor, and improves filter performance, all without impacting the pH level.<BR><BR><SPAN style='font-weight:bold;'>Product Features:</SPAN><BR><BR><DIV><LI>Use to clear cloudy water and remove organic contaminants <LI>Reduces unpleasant chlorine odors <LI>Promotes increased filter efficiency <LI>Doesn't impact the water's pH level <LI>Wait 15 minutes after treatment before entering <LI>Includes twelve 1 lb. bags</DIV>