HTH Pool Care Ultra Granule Shock Treatment 6 Lb 52040
HTH Pool Care Shock Ultra Granules quickly solve 90% of pool water problems. Compatible with all pool types, the Cal Hypo-based formula delivers powerful chlorine levels, prevents bacteria, algae, and stains without adding cyanuric acid. Visible blue action indicates the product is working, and pool water is restored to crystal clarity in just 24 hours. Keep your pool clean and clear with this all-in-one powerhouse.