Best Swimming Pool Chlorine(Updated April 2025)

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Product image of HTH 52037R Pool Care Shock Advanced, Swimming Pool Chemical - Cal Hypo Formula, Prevents Bacteria & Algae, Restores Crystal Clear Water - Shock Treatment, 1lb (12 Pack)

HTH 52037R Pool Care Shock Advanced, Swimming Pool Chemical - Cal Hypo Formula, Prevents Bacteria & Algae, Restores Crystal Clear Water - Shock Treatment, 1lb (12 Pack)

(13.83K)
$47.60$56.00
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Buyer Rating10
Functionality
Value for money
Quality
Algae removal
Shock level
Ease of use

Bought by 197 people today

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

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

(36.1K)
$32.99$40.99
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Buyer Rating9.7

Bought by 230 people today

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Product image of In The Swim 3 Inch Stabilized Chlorine Tablets for Sanitizing Swimming Pools - Individually Wrapped, Slow Dissolving - 90% Available Chlorine - Tri-Chlor - 50 Pounds

In The Swim 3 Inch Stabilized Chlorine Tablets for Sanitizing Swimming Pools - Individually Wrapped, Slow Dissolving - 90% Available Chlorine - Tri-Chlor - 50 Pounds

(21.04K)
$194.99
Buyer Rating9.5
Quality
Value for money
Chlorine content
Longevity
Individual wrapping
Water clarity

Bought by 113 people today

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Product image of HTH 42049 Pool Care 1" Chlorine Tabs, Swimming Pool Sanitizer with Added Clarifier - Eliminates Bacteria & Algae, Makes Water Clean & Crystal Clear, Sanitizes & Protects - Slow Dissolving, 1.5 lbs

HTH 42049 Pool Care 1" Chlorine Tabs, Swimming Pool Sanitizer with Added Clarifier - Eliminates Bacteria & Algae, Makes Water Clean & Crystal Clear, Sanitizes & Protects - Slow Dissolving, 1.5 lbs

(8.49K)
$16.11$24.00
Buyer Rating9.3
Works well
Value for money
Size
Longevity
Water clarity
Chlorine level

Bought by 215 people today

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Product image of FROG @Ease Replacement SmartChlor Cartridge for use with Hot Tub FROG @Ease Floating System - Hot Tub Sanitizer System Supports Less Chlorine Use - 3 Pack

FROG @Ease Replacement SmartChlor Cartridge for use with Hot Tub FROG @Ease Floating System - Hot Tub Sanitizer System Supports Less Chlorine Use - 3 Pack

(8.53K)
$51.05$54.95
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Buyer Rating9
Ease of use
Works well
Cleanliness
Water clarity
Chemical balance

Bought by 148 people today

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Guides

Pools, Hot Tubs & Supplies

Guide to Buying Swimming Pool Chlorine

Choose the best chlorine for safe, sparkling clean swimming pools.