Our fast-dissolving 4-in-1 pool shock for algae formula kills bacteria and algae, reduces chlorine odor and restores water clarity. Find an HTH™ retailer now!

Shock treat, sanitize, clarify and help prevent bacteria and algae in your swimming pool water, all with this convenient, easy-to-use pool chlorine shock. Multi-use pool shock with Cal Hypo; Use …

Visit HTH's™ site for our wide variety of pool shock products to keep your pool clear. Browse all of our shock for pools and find a retail store near you now!

The 4-in-1 powerful pool shock designed to boost chlorine levels and kill and prevent bacteria and algae for a clear, healthy pool. Each pound of Super shock packs a powerful punch, treating …

Compatible with all swimming pools: This product is great for all pool types including vinyl-lined pools and salt water systems. You're all clear with HTH: For best results, use with HTH® 6 …

HTH Pool Care Shock Advanced works great to keep to keep the pool water clear. It's handy to have the resealable bag with slider guard. It's easy to add to the pool and helps reduce eye …

FEATURES: Multi-functional shock treatment for weekly use to solve 90% of pool water problems within 24 hours and restore crystal clarity ; VISIBLY BRILLIANT SPARKLE: This Cal Hypo …

HTH Shock is the original swimming pool shock designed to boost chlorine levels and kill bacteria and algae for a clean, clear pool. Traditional chlorine products contain cyanuric acid (CYA). …

15 x 1 lbs. Shock Bags and 15 6-Way Test Strips; Treatment for Weekly Use, Prevents Bacteria and Algae; Use Weekly To Solve 90% of Swimming Pool Water Problems; Cal-Hypo Restores …

Use this all-in-one pool super shock to quickly and easily increase chlorine levels, prevent bacteria, algae, stain and scale, reduce skin and eye irritation, improve filtration and soften …