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HTH Chlorine Shock — Granules, 13.3 oz — Pool Shock Treatment for Weekly Chlorination
Key item features
- Intense Boost: Provides an intense weekly chlorine boost to quickly increase chlorine levels in pool water.
- Problem Solver: Designed to solve 90% of common pool water problems within 24 hours when used weekly.
- Algae Prevention: Effectively prevents the growth of bacteria and algae, contributing to a clean and clear pool.
- Fast Action: Features a fast-acting and fast-dissolving granular formula for rapid results.
- CYA-Free Formula: Utilizes a Cal Hypo based formula that provides chlorination without adding extra cyanuric acid (CYA), preventing over-stabilization.
- Liner Safe: Suitable for all pool types and will not cause fading of pool liners.
- Weekly Maintenance: Recommended for use as part of a weekly pool care routine to maintain free available chlorine levels between 1 and 4 ppm.
Generated by AI
Specs
- Chemical standard typeCalcium Hypochlorite Shock
- FormGranules
- Weight13.3 oz
- Pack quantity18
Price when purchased online
More seller options (1)
Starting from $10.25
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About this item
Product details
HTH Pool Care Shock, Boosts Chlorine Levels, Cal Hypo Formula, 13.3 oz
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). 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 based formula in HTH Shock provides chlorination without adding extra CYA for a beautiful sparkle all season. This pool chemical shock is great for all pool types and won't fade your pool liner.
How To Use HTH Shock Follow the on-pack instructions according to your pool size to add HTH Shock directly to swimming pool water or skimmer. For best results, apply HTH Shock as part of your weekly pool care routine to keep free available chlorine levels between 1 and 4 ppm.
- Intense weekly chlorine boost
- Increases chlorine levels quickly
- Prevents bacteria & algae
- Use weekly to solve 90% of pool water problems within 24 hours
- Fast-acting and fast-dissolving
- Granules shock
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.
Specifications
Chemical standard type
Calcium Hypochlorite Shock
Form
Granules
Weight
13.3 oz
Pack quantity
18
Warranty
Warranty information
No
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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 304 reviews
Jun 5, 2026
anonymous
Item details
Count: 6
5 out of 5 stars review
Verified Purchase
good quality and good price
Helpful?c960eaa0-688f-11f1-970f-13faca9cd0ac984533861
Jun 9, 2026
Danielle
Top Reviewer
Item details
Size: 13.3 oz
5 out of 5 stars review
Verified Purchase
Pool shock
6'pack pool shock, easy to put in the pool, each tab works for our big pool
Helpful?c960eaa0-688f-11f1-970f-13faca9cd0ac984533861
May 16, 2026
thomas
Top Reviewer
Item details
Size: 13.3 oz
5 out of 5 stars review
Verified Purchase
HTH shock
shipped quickly , as described. Good price
Helpful?c960eaa0-688f-11f1-970f-13faca9cd0ac984533861
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