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HTH Pool Care Shock Advanced — Granules, 6 Pack (6 lb total) — Pool Shock Treatment for Weekly Pool Sanitizing

4.6 stars out of 7475 reviews

(4.6)|

7,475 ratings

HTH Pool Care Shock Advanced — Granules, 6 Pack (6 lb total) — Pool Shock Treatment for Weekly Pool Sanitizing HTH Pool Care Shock Advanced for Swimming Pools Granules 6 Pack 1 lb HTH Pool Care Shock Advanced for Swimming Pools Granules 12 Pack 1 lb HTH Pool Care Shock Advanced for Swimming Pools Granules 1 lb

Count Per Pack:6

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 type
Calcium Hypochlorite Shock
Form
Granules
Pool chemical type
Swimming Pool Shock
Weight
6 lb

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was $29.99

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About this item

Product details

HTH Pool Care Shock Advanced, Prevents Bacteria & Algae, Cal Hypo Formula, 1 lbs (Pack of 6)

HTH® Pool Care Shock Advanced 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 provides chlorination without adding extra CYA for a beautiful sparkle all season. This product is great for all 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:

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

Pool chemical type

Swimming Pool Shock

Weight

6 lb

Warranty

Warranty information

N/A

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.

Warranty url

https://hthpools.com/pages/privacy-statement

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Compare with similar items

Comparison Overview:
Product	Viewing this item HTH Pool Care Shock Advanced — Granules, 6 Pack (6 lb total) — Pool Shock Treatment for Weekly Pool Sanitizing current price Now $24.13, Was $29.99 HTH Pool Care Shock Advanced — Granules, 6 Pack (6 lb total) — Pool Shock Treatment for Weekly Pool Sanitizing 4.6 out of 5 Stars. 7475 reviews	Clorox Pool&Spa Shock XtraBlue Granules Swimming Pool Shock, 1lb for sanitization current price $6.47 Clorox Pool&Spa Shock XtraBlue Granules Swimming Pool Shock, 1lb for sanitization 4.7 out of 5 Stars. 1336 reviews	Clorox Pool&Spa Algaecide Clarifier current price $14.88 Clorox Pool&Spa Algaecide Clarifier 4.5 out of 5 Stars. 3745 reviews	Splash Liquid Pool Shock Chlorinator 10% Sodium Hypochlorite for Algae and Bacteria Control current price $5.67 Splash Liquid Pool Shock Chlorinator 10% Sodium Hypochlorite for Algae and Bacteria Control 4.6 out of 5 Stars. 210 reviews	(3 pack) HTH Pool Care Shock Advanced — Granules, 1 lb — Pool Shock Treatment for Weekly Use current price $14.43 (3 pack) HTH Pool Care Shock Advanced — Granules, 1 lb — Pool Shock Treatment for Weekly Use	HTH 3-inch Chlorine Tablet Advanced — Tablet, 6 oz — Pool Sanitizer for Swimming Pools current price $5.97 HTH 3-inch Chlorine Tablet Advanced — Tablet, 6 oz — Pool Sanitizer for Swimming Pools 4.6 out of 5 Stars. 648 reviews	(2 pack) HTH Green to Blue Pool Shock Kit — Granules (Form), 4 lb — Pool Shock Treatment for Algae Removal and Water Clarification current price $56.88 (2 pack) HTH Green to Blue Pool Shock Kit — Granules (Form), 4 lb — Pool Shock Treatment for Algae Removal and Water Clarification	Clorox Pool&Spa Chlorine Stabilizer Pool Water Balancers Granules, 4 lbs for pH balancing current price $19.97 Clorox Pool&Spa Chlorine Stabilizer Pool Water Balancers Granules, 4 lbs for pH balancing 4.5 out of 5 Stars. 1543 reviews	Clorox Pool&Spa Liquid Super Water Clarifier 32 oz current price $10.77 Clorox Pool&Spa Liquid Super Water Clarifier 32 oz 4.6 out of 5 Stars. 1350 reviews	HTH Algae Guard Advanced — Liquid, 28 fl oz — Pool Algaecide Compatible with All Pool Types current price $20.97 HTH Algae Guard Advanced — Liquid, 28 fl oz — Pool Algaecide Compatible with All Pool Types 4.5 out of 5 Stars. 392 reviews

Comparison Chart:
Chemical standard type	Calcium Hypochlorite ShockHTH Pool Care Shock Advanced — Granules, 6 Pack (6 lb total) — Pool Shock Treatment for Weekly Pool Sanitizing	ShockClorox Pool&Spa Shock XtraBlue Granules Swimming Pool Shock, 1lb for sanitization	Algicide & ClarifierClorox Pool&Spa Algaecide Clarifier	ShockSplash Liquid Pool Shock Chlorinator 10% Sodium Hypochlorite for Algae and Bacteria Control	Shock(3 pack) HTH Pool Care Shock Advanced — Granules, 1 lb — Pool Shock Treatment for Weekly Use	3” Chlorine TabletsHTH 3-inch Chlorine Tablet Advanced — Tablet, 6 oz — Pool Sanitizer for Swimming Pools	Shock(2 pack) HTH Green to Blue Pool Shock Kit — Granules (Form), 4 lb — Pool Shock Treatment for Algae Removal and Water Clarification	Chlorine StabilizerClorox Pool&Spa Chlorine Stabilizer Pool Water Balancers Granules, 4 lbs for pH balancing	ClarifierClorox Pool&Spa Liquid Super Water Clarifier 32 oz	AlgicideHTH Algae Guard Advanced — Liquid, 28 fl oz — Pool Algaecide Compatible with All Pool Types
Form	GranulesHTH Pool Care Shock Advanced — Granules, 6 Pack (6 lb total) — Pool Shock Treatment for Weekly Pool Sanitizing	GranulesClorox Pool&Spa Shock XtraBlue Granules Swimming Pool Shock, 1lb for sanitization	LiquidClorox Pool&Spa Algaecide Clarifier	LiquidSplash Liquid Pool Shock Chlorinator 10% Sodium Hypochlorite for Algae and Bacteria Control	Granules(3 pack) HTH Pool Care Shock Advanced — Granules, 1 lb — Pool Shock Treatment for Weekly Use	TabletsHTH 3-inch Chlorine Tablet Advanced — Tablet, 6 oz — Pool Sanitizer for Swimming Pools	Granules(2 pack) HTH Green to Blue Pool Shock Kit — Granules (Form), 4 lb — Pool Shock Treatment for Algae Removal and Water Clarification	GranulesClorox Pool&Spa Chlorine Stabilizer Pool Water Balancers Granules, 4 lbs for pH balancing	LiquidClorox Pool&Spa Liquid Super Water Clarifier 32 oz	LiquidHTH Algae Guard Advanced — Liquid, 28 fl oz — Pool Algaecide Compatible with All Pool Types
Pool chemical type	Swimming Pool ShockHTH Pool Care Shock Advanced — Granules, 6 Pack (6 lb total) — Pool Shock Treatment for Weekly Pool Sanitizing	Swimming Pool ShockClorox Pool&Spa Shock XtraBlue Granules Swimming Pool Shock, 1lb for sanitization	-Clorox Pool&Spa Algaecide Clarifier	Swimming Pool ShockSplash Liquid Pool Shock Chlorinator 10% Sodium Hypochlorite for Algae and Bacteria Control	Swimming Pool Shock(3 pack) HTH Pool Care Shock Advanced — Granules, 1 lb — Pool Shock Treatment for Weekly Use	Chlorine Pool ChemicalsHTH 3-inch Chlorine Tablet Advanced — Tablet, 6 oz — Pool Sanitizer for Swimming Pools	Swimming Pool Shock(2 pack) HTH Green to Blue Pool Shock Kit — Granules (Form), 4 lb — Pool Shock Treatment for Algae Removal and Water Clarification	Pool Water BalancersClorox Pool&Spa Chlorine Stabilizer Pool Water Balancers Granules, 4 lbs for pH balancing	Pool Clarifier ChemicalsClorox Pool&Spa Liquid Super Water Clarifier 32 oz	-HTH Algae Guard Advanced — Liquid, 28 fl oz — Pool Algaecide Compatible with All Pool Types
Weight	6 lbHTH Pool Care Shock Advanced — Granules, 6 Pack (6 lb total) — Pool Shock Treatment for Weekly Pool Sanitizing	1 lbClorox Pool&Spa Shock XtraBlue Granules Swimming Pool Shock, 1lb for sanitization	8.09 lbClorox Pool&Spa Algaecide Clarifier	10 lbSplash Liquid Pool Shock Chlorinator 10% Sodium Hypochlorite for Algae and Bacteria Control	1 lbs(3 pack) HTH Pool Care Shock Advanced — Granules, 1 lb — Pool Shock Treatment for Weekly Use	0.38 lbHTH 3-inch Chlorine Tablet Advanced — Tablet, 6 oz — Pool Sanitizer for Swimming Pools	7 lb(2 pack) HTH Green to Blue Pool Shock Kit — Granules (Form), 4 lb — Pool Shock Treatment for Algae Removal and Water Clarification	4 lbClorox Pool&Spa Chlorine Stabilizer Pool Water Balancers Granules, 4 lbs for pH balancing	-Clorox Pool&Spa Liquid Super Water Clarifier 32 oz	1.75 lbHTH Algae Guard Advanced — Liquid, 28 fl oz — Pool Algaecide Compatible with All Pool Types

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Customer ratings & reviews

4.6 out of 5 stars

stars7,475 ratings1,803 reviews

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Showing 1-3 of 1,803 reviews

Nov 11, 2025

Jodi

Top Reviewer

Item details

Count per pack: 12

5 out of 5 stars review

Verified Purchase

Pool clarity

We always use HTH shock for our pool and continue to have crystal clear water. We have tried other pool shock which messed with the chemistry and made more work if we had not tried.

Helpful?

Aug 15, 2024

PoolLady

Item details

Count per pack: 12

5 out of 5 stars review

Verified Purchase

Helped my Dark Green Pool!!

My pool has roughly 2500 gallons of water. There was a week of heavy raining plus I had neglected the pool a week before out of ignorance. This is my first pool. After the rain my pool went DARK GREEN. I researched and added a bag of Clorox shock and nothing I added one bag of hth shock and nothing I then bought the six pack of shock and at night I mixed in THREE BAGS the next morning it was light green!! To be sure I mixed in the next 3 bags and it was fully cleared up by midday. Please note - every time I added the chemicals I pre dissolved the shock in a small bucket for fear of ruining my pool liner. Hope this helps someone because it definitely helped me.

Helpful?

Aug 14, 2025

CHRISTY

Item details

Count per pack: 12

5 out of 5 stars review

Verified Purchase

I think I'm a professional pool cleaner

Worked as expected and highly recommended by several people! It's breaking up the black algae slowly but surely and levels are literally perfect after one use even with all the rain! Everything is on the bottom making cleaning and vacuuming very low maintenance!

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