4-In-1 Super Shock Treatment, 1-Lb.

HTH



"HTH(TM) super shock treatment, 1 lb is an effective, 4-in-1 shock product that kills bacteria and algae and restores crystal clarity to pool water within 24 hours, reduces chlorine odor and eye irritation caused by swimming pool water and won't fade liners. It is convenient, easy to use, and won't over-stabilize your pool."