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100+ bought since yesterday, try a subscriptionBest seller
HTH Pool Care Shock Advanced — Granules, 1 lb — Pool Shock Treatment for Weekly Use
Key item features
- Multi-functional shock treatment for weekly use
- Prevents bacteria & algae
- Use weekly to solve 90% of pool water problems within 24 hours
- Restores crystal clarity in 24 hours
- Visibly brilliant sparkle
- This Cal Hypo based formula sanitizes without adding cyanuric acid (CYA) to prevent over-stabilization or chlorine lock.
Specs
- Chemical standard typeCalcium Hypochlorite Shock
- FormGranules
- Pool chemical typeSwimming Pool Shock
- Weight1 lb
Current price is USD$4.81$4.81/lb
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Columbus, 43215
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About this item
Product details
HTH Pool Care Shock Advanced for Swimming Pools, Prevents Bacteria & Algae, Cal Hypo Formula, Pool Chemicals, 1 lbs
HTH® Pool Care Shock Advanced 1lb is the powerful 4-in-1 formula with Cal Hypo that kills and prevents bacteria and algae as well as reduces chlorine odor and irritation for crystal clear, healthy water. Traditional chlorine products contain cyanuric acid (CYA). When too much CYA builds up, it can cause over-stabilization or chlorine lock and cloud your water. The fast-acting, fast-dissolving Cal Hypo formula in HTH® Pool Care Shock Advanced 1lb provides chlorination without adding extra CYA for a beautiful sparkle all season. This product is great for all swimming pool types and won't fade your pool liner.
How To Use HTH® Shock Advanced: Follow the on-pack instructions according to your pool size to add HTH® Shock Advanced directly to swimming pool water or skimmer. Make sure to use a clean, dry scoop. For best results, apply HTH® Shock Advanced as part of your weekly pool care routine to keep free available chlorine levels between 1 and 4 ppm.
- Multi-functional shock treatment for weekly use
- Prevents bacteria & algae
- Use weekly to solve 90% of pool water problems within 24 hours
- Restores crystal clarity in 24 hours
- Visibly brilliant sparkle
- This Cal Hypo based formula sanitizes without adding cyanuric acid (CYA) to prevent over-stabilization or chlorine lock.
info:
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Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.
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Showing 1-3 of 1,817 reviews
Apr 1, 2025
Bette
Top Reviewer
Item details
Count per pack: 1
5 out of 5 stars review
Verified Purchase
Works Great
Our pool suddenly went green and I needed shock fast. Looked up Walmart same-day delivery and this was a good price, delivered that afternoon. After brushing %26 vaccuuming I immediately used one pack, then the next day brushed %26 vaccuumed again and added a second pack. Pool looks great!
Helpful?f473aa10-0b0c-11f1-8e30-63e7131886fb733727619
Mar 15, 2025
Samantha
Item details
Count per pack: 12
5 out of 5 stars review
Verified Purchase
Pool was in chlorine lock due to just opening for the season. This product quickly cleared the water and allowed for the addition of chlorine in a few days. Highly recommend.
Helpful?f473aa10-0b0c-11f1-8e30-63e7131886fb733727619
Mar 6, 2025
Anthony
Item details
Count per pack: 6
5 out of 5 stars review
Verified Purchase
This actually does a good job of keeping your chlorine from getting locked up. Very good and essential product uf you're doing your own pool maintenance.
Helpful?f473aa10-0b0c-11f1-8e30-63e7131886fb733727619
