HTH™ Shock Advanced pool shock helps you take on cloudy, unbalanced water with confidence.

• This powerful 4-in-1 swimming pool shock treatment kills bacteria, prevents algae, reduces chlorine odor, and restores clarity fast.
• With Cal Hypo technology, it delivers a sparkling clean pool without adding cyanuric acid, so you can enjoy a healthy, inviting swim all season long.
• For best results, shock weekly with HTH™ Shock Advanced.

HTH™ is here to help giving you the confidence to keep your water clear, safe, and always swim ready. You're all clear with HTH™.