HTH® Pool Care Shock Ultra

Use this all-in-one powerhouse to quickly and easily increase chlorine levels, prevent bacteria, algae, stain and scale, reduce skin and eye irritation, improve filtration and soften your swimming pool water. All-in-1 weekly Cal Hypo pool shock Use weekly to solve 90% of pool water problems Restores crystal clarity in 24 hours How to use HTH® Shock Advanced 1. Add Directly To Water Or Skimmer Follow the on-pack instructions according to your swimming pool size. 2. Repeat Weekly For best results, use HTH® Shock Advanced as part of your weekly pool care routine to keep free available chlorine levels between 1 and 4 ppm.