10 Best chlorines of 2025

Save up to 43% off

Best Choice

1

Doheny's
Doheny’s 3-Inch Stabilized Chlorine Tablets | 99% Pure Tri-Chlor, 90% Available Chlorine | Long-Lasting, UV-Protected, Slow-Dissolving Pool Sanitizer | Individually Wrapped, Childproof 50lb Bucket
Main highlights

Long Lasting and UV Stabilized
Each tab is pre-stabilized against UV rays to prevent premature chlorine burn-off, making them last longer and more efficient.

Ideal for Pool Maintenance
Perfect for placing in pool skimmers, floaters, or feeders for easy chlorine distribution, ensuring a clean and clear pool.

Individually Wrapped Tablets
Customers appreciate the individually wrapped tablets which minimize odor, dust, and skin contact, and keep the chlorine fresh and controlled.
9.7

Exceptional

Our Rating

9.3
Simple to use

9.3
safety

8.7
Long life
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Value for Money

2

Pool Breeze

Pool Breeze 1" Trichlor Tablets 25 Lb | 88420
9.6

Exceptional

Our Rating
3

CLOROX POOL & Spa
Clorox Pool&Spa XTRABLUE 3” Chlorinating Tablets, Individually Wrapped, Kills Bacteria & Stops Algae (5 LB)
Main highlights

Kills Bacteria and Algae
Effectively eliminates bacteria and prevents all types of pool algae.

Ideal for Pool Maintenance
Perfect for regular pool care, ensuring water clarity and safety.

Highly Praised for Performance
Users commend its effectiveness in maintaining pool cleanliness.
Key specs
- Usage:Kills bacteria
- Features:Prevents corrosion, scale
- Form:N/A
- Capacity:N/A
- Active Ingredient:N/A
9.5

Excellent

Our Rating

8.0
Sheerness

8.0
Simple to use

8.0
Long life
4

HTH
HTH 42052W Pool Care 3" Chlorine Tabs Advanced, Individually Wrapped Tablets - Swimming Pool Sanitizer with Clarifier & Algaecide, Destroys Bacteria & Algae, Delivers Clear Water All Season, 5 lbs

40% Off
Main highlights

All-in-One Pool Care
Sanitizer, clarifier, and algaecide in one convenient tablet.

Versatile Use Cases
Ideal for all pool types, including vinyl and saltwater.

Customer Praised Feature
Individually wrapped tablets praised for easy and immediate use.
Key specs
- Usage:Swimming pool sanitizer
- Features:Sanitizer, clarifier, algaecide
- Form:Tablet
- Capacity:3-inch tablet
- Active Ingredient:Chlorine
9.3

Excellent

Our Rating

8.2
Simple to use

8.0
Long life

8.0
worth the money
5

HTH
HTH 52031 Swimming Pool Care Shock, Swimming Pool Chlorinator Boosts Chlorine Levels, Cal Hypo Formula, 13.3oz (1 Pack)

43% Off
Main highlights

Convenient Multi-Use Pool Shock
Shock treat, sanitize, clarify, and help prevent bacteria and algae in your swimming pool water, all with this convenient, easy-to-use product.

Ideal for All Pool Types
Great for all pool types including vinyl-lined pools and saltwater systems. Use weekly to solve 90% of pool water problems within 24 hours.

Highly Praised for Affordability and Effectiveness
Customers appreciate its affordability, effectiveness in maintaining clean and algae-free pools, and the convenience of pre-measured packets, making pool maintenance easy and efficient.
9.1

Excellent

Our Rating

9.5
Simple to use

9.3
Sheerness

8.2
worth the money
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6

XtremepowerUS

XtremeClear 3 Inch Stabilized Chlorine Tablets for Sanitizing Swimming Pools - Individually Wrapped, Slow Dissolving Chlorine - Tri-Chlor - 5 Pounds
9.0

Excellent

Our Rating
7

CPDI

CPDI Champion 4-Pack Pool Shock, 12.5 Liquid Chlorinator for Swimming Pools, 1 Gallon Each - Fast-Acting Sodium Hypochlorite Sanitizer, Ready to Use, Non-Staining, Non-Scaling, Commercial Grade
8.7

Very Good

Our Rating

9.9
Simple to use

9.9
worth the money
8

SpaGuard
SpaGuard Chlorinating Concentrate (14 oz)
Main highlights

Key Features
Fast-acting, quick-dissolving granular stabilized chlorine. No pre-dissolving needed, ensuring a more efficient and hassle-free maintenance routine.

Ideal Use Cases
Perfect for regular maintenance of swimming pools, ensuring crystal clear, sanitized water without the wait or extra steps.

Customer Praise
Most reviews highlight its ease of use and effectiveness, with users appreciating the convenience of not having to pre-dissolve the product.
Key specs
- Usage:Spa
- Features:Fast Acting
- Form:Granular
- Capacity:14 oz
- Active Ingredient:Chlorine
8.4

Good

Our Rating

8.9
Simple to use

8.7
Durability

8.0
worth the money
9

HTH
HTH 42051 Swimming Pool Care 3" Chlorine Tabs Advanced, Swimming Pool Chlorinating Sanitizer, 8oz
Main highlights

Comprehensive Pool Care
Sanitizes, clarifies, and kills algae for clear water all season.

Versatile Use
Ideal for all pool types, including vinyl-lined and saltwater systems.

Consistently Clear Water
Customers praise its ability to maintain clear and clean water.
8.3

Good

Our Rating

8.0
Simple to use

8.0
Long life

8.0
worth the money
10

Clorox Pool & Spa
Clorox® Pool&Spa™ XtraBlue 1” Swimming Pool Chlorinating Tablets, Kills Bacteria & Stops Algae, Perfect for Small Pools (5 LB)
Main highlights

Key Features
Eliminates bacteria, prevents algae, corrosion, and stains, offering long-lasting sunlight protection for pools.

Ideal Use Cases
Optimal for small pools, ensuring a clean, safe, and maintenance-free swimming experience.

Customer Reviews Highlight
Most praised for its effective algae prevention and maintaining clear, clean pool water.
8.1

Good

Our Rating

8.0
Simple to use

8.0
Long life

8.0
worth the money

10 Best chlorines of 2025

1

Doheny’s 3-Inch Stabilized Chlorine Tablets | 99% Pure Tri-Chlor, 90% Available Chlorine | Long-Lasting, UV-Protected, Slow-Dissolving Pool Sanitizer | Individually Wrapped, Childproof 50lb Bucket

9.3

9.3

8.7

How do we rank?

How do we rank?

Analyzing top stores

2

Pool Breeze 1" Trichlor Tablets 25 Lb | 88420

3

Clorox Pool&Spa XTRABLUE 3” Chlorinating Tablets, Individually Wrapped, Kills Bacteria & Stops Algae (5 LB)

8.0

8.0

8.0

4

HTH 42052W Pool Care 3" Chlorine Tabs Advanced, Individually Wrapped Tablets - Swimming Pool Sanitizer with Clarifier & Algaecide, Destroys Bacteria & Algae, Delivers Clear Water All Season, 5 lbs

8.2

8.0

8.0

5

HTH 52031 Swimming Pool Care Shock, Swimming Pool Chlorinator Boosts Chlorine Levels, Cal Hypo Formula, 13.3oz (1 Pack)

9.5

9.3

8.2

6

XtremeClear 3 Inch Stabilized Chlorine Tablets for Sanitizing Swimming Pools - Individually Wrapped, Slow Dissolving Chlorine - Tri-Chlor - 5 Pounds

7

CPDI Champion 4-Pack Pool Shock, 12.5 Liquid Chlorinator for Swimming Pools, 1 Gallon Each - Fast-Acting Sodium Hypochlorite Sanitizer, Ready to Use, Non-Staining, Non-Scaling, Commercial Grade

9.9

9.9

8

SpaGuard Chlorinating Concentrate (14 oz)

8.9

8.7

8.0

9

HTH 42051 Swimming Pool Care 3" Chlorine Tabs Advanced, Swimming Pool Chlorinating Sanitizer, 8oz

8.0

8.0

8.0

10

Clorox® Pool&Spa™ XtraBlue 1” Swimming Pool Chlorinating Tablets, Kills Bacteria & Stops Algae, Perfect for Small Pools (5 LB)

8.0

8.0

8.0

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