Today's best Swimming Pool Chlorine products & deals of 2026

Updated May 1, 2026

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In The Swim

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

Cleaner, Safer Water: Our chlorine tablets remove bacteria, algae, and other organic contaminants to ensure your above ground or inground swimming pool stays clean and clear throughout the entire season

Powerful Sanitization: 99% Trichloro-S-Triazinetrione with 90% stabilized chlorine. Tablets do not expire and are non-perishable, but best used within 2 years of manufacture.

Long-Lasting Protection: Slow-dissolving to ensure consistent chlorination. Perfect for use in floaters or automatic feeders

UV Protected: Sun-stabilized to resist depletion from harmful UV rays

Usage: Ideal size for floaters or automatic feeders

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XtremepowerUS

15% Off

Xtremeclear 3" Swimming Pool Chlorine Tablets 99% Pure Tri-Chlor| Long Lasting & Slow Dissolving | Pro-Grade Pool Sanitizer | 5 Pounds Bucket

Active Ingredients - Our pool tablets are pro-grade made from 99% Trichloro-S-Triazinetrione and 90% stabilized chlorine. Designed to be sun-stabilized, resisting depletion from harmful UV rays to provide reliable, long-lasting chlorination.

Ready To Use - Size perfect for floaters, pool skimmer or any automatic feeder which bigger than 3-Inch (Floating Tablet Dispenser Sold Separate ASIN: B07193P5HZ) 3-Inch chlorine tabs for swimming pool fit easily into most of pool skimmers, floaters or other chlorinating devices.

Saving Money - Having our chlorinating tablets, you don't need change the frequently, 1-tab helps you saving about 5,000 gallons of water. These versatile tablets make pool maintenance easy and efficient. Effectively prevents unsightly pool algae, keeping your pool clean, clear, and ready for use. Enjoy a hassle-free swimming experience with our reliable algae control solution.

Versatile Application - Designed for use in pool skimmers, floating dispensers, & automatic chlorinators, these chlorinating tablets offer flexible compatibility for in-ground and above-ground, hot tubs, spa, hot spring pools, water parks, even for toilets, pool systems and standard maintenance routines. Chlorine Tabs dissolve slowly and last up to one week

Long-Lasting Chlorine Tabs - Each tab is pre-stabilized against the sun's UV rays to prevent premature chlorine burn-off, making them last longer. Chlorine tabs for swimming pool fit easily into most of pool skimmers, floaters or other chlorinating devices.

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30% Off

PROFELIZ Chlorine Tablets 3 Inch for Swimming Pools, Kills Bacteria and Stops Algae, Slow Dissolving,Exclusive Protective Packaging,Pool Chlorine Tablets,20lbs

Exclusive Protective Packaging: Each 5pcs 3 inch chlorine tablets for pool are tightly wrapped in a protective plastic box to prevent accidental breakage .

Active Ingredients:Each chlorine tablet contains 99% Trichloro-S-Triazinetrione with 90% available chlorine.

Clean Effectively: Kills bacteria and stops algae growth to keep your pool clean and clear all season long.

Long-Lasting Protection: Ensure your pool remains effective with Profeliz chlorine tablets for pool even under direct sunlight exposure. Profeliz 3”chlorine tablets for pool are designed to dissolve slowly and last up to one week.

Suitable for all pools: 3 inch chlorine tablets for pools are great for all swimming pool types, including above ground and in-ground pools.Profeliz chlorine tabs for swimming pool fit easily into most of pool skimmers, floaters or other chlorinating devices.

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We analyzed thousands of deals using our proprietary SmartDeal algorithm.

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365-day tracking to establish a fair median baseline.

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Value Ratio

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Popularity

Real-time demand tracking for trending items.

In The Swim

In The Swim 3 Inch Stabilized Chlorine Tablets for Sanitizing Swimming Pools - Individually Wrapped, Slow Dissolving - 90% Available Chlorine - Tri-Chlor - 25 Pounds

Powerful Sanitization: 99% Trichloro-S-Triazinetrione with 90% stabilized chlorine. Tablets do not expire and are non-perishable, but best used within 2 years of manufacture.

Long-Lasting Protection: Slow-dissolving to ensure consistent chlorination. Perfect for use in floaters or automatic feeders

UV Protected: Sun-stabilized to resist depletion from harmful UV rays

Usage: Ideal size for floaters or automatic feeders

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Doheny's Super Pool Shock | Pro-Grade Chlorine Shock, Quick-Dissolving, Fast-Acting 68% Cal-Hypo Granular Pool Shock | 24 x 1lb Bags, Proudly Made in the USA

Fast-Acting Pool Shock: Instantly boosts chlorine levels to eliminate algae and contaminants, keeping your pool crystal clear.

Pro-Grade Cal Hypo Shock: Made with 68% calcium hypochlorite and 65% available chlorine for powerful, long-lasting pool maintenance.

Convenient & Easy to Use: Pre-measured 1lb bags ensure quick, hassle-free application—no measuring needed.

Effective Dosage: Use 1lb per 10,000 gallons; for spring openings or heavy algae blooms, apply 2-3 doses for best results.

Trusted Quality, Family-Owned: With over 50 years of pool supply expertise, Doheny’s provides high-quality products you can count on.

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36% Off

Chlorine Tablets 3 inch 25 Pounds, TABIT Swimming Pool Long Lasting Chlorinating Tablets, Slow Dissolving, Tri-Chlor for Swim Pool, Hot Tubs, Spa

Cleaner, Safer Water All Season: Effectively eliminates bacteria, algae, and organic contaminants to keep your above-ground or in-ground pool clean, clear, and swim-ready throughout the entire season.

Easy Dosage & Consistent Performance: Each slow‑dissolving 3‑inch tablet provides steady chlorine release for reliable sanitation, typically treating up to 10,000 gallons and lasting several days under normal pool conditions when used as directed.

Powerful Chlorine Formula: Made with 99% Trichloro-S-Triazinetrione and 90% available stabilized chlorine to maintain effective sanitization.

Compatible & Pool-Safe Design: Ideal for use in floaters, floating dispensers, or automatic feeders. Safe for vinyl liner, fiberglass, concrete, plaster, and tile pools.

Long-Lasting Protection: Designed to be sun-stabilized, resisting depletion from harmful UV rays to provide reliable, long-lasting chlorination. Non-perishable and formulated to maintain effectiveness over time. For optimal performance, best used within 2 years of manufacture.

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

BENEFITS: Stay all clear for cannonballs; This fast-dissolving, convenient 4-in-1 formula kills bacteria and algae, reduces chlorine odor and irritation, and quickly restores crystal clarity

FEATURES: Multi-functional shock treatment for weekly use to solve 90% of pool water problems within 24 hours and restore crystal clarity

VISIBLY BRILLIANT SPARKLE: This Cal Hypo based formula sanitizes without adding cyanuric acid (CYA) to prevent overstabilization or chlorine lock

COMPATIBLE WITH ALL SWIMMING POOLS: This product is great for all pool types including vinyl-lined pools and saltwater systems

YOU'RE ALL CLEAR WITH HTH: For best results, use with HTH 6-Way Test Strips to test and balance your swimming pool water twice weekly

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

Cleans Water & Stops Algae: Kills harmful bacteria and prevents equipment corrosion, scale and stains. Kills and prevents all types of swimming pool algae (green, mustard, black)

Long-lasting sunlight protection: Contains chlorine stabilizer to extend the life of your clean

Creates Silky Smooth Feeling Water: XTRABLUE chlorinating tablets contain conditioners for silky smooth feeling water

Usage: Apply 2 tablets weekly to treat 10,000 gallons of water, add more tablets as needed to maintain adequate sanitation. Safe for all swimming pool surfaces, including vinyl, plaster, fiberglass, and tile.

Clorox Pool App: Test like an expert anytime, anywhere with the Clorox Pool App. Solve common swimming pool problems and get personalized product and dosage recommendations

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14% Off

HTH 52030B Swimming Pool Care Shock, Swimming Pool Chlorinator Boosts Chlorine Levels, Cal Hypo Formula, 13.3oz (Pack of 6)

BENEFIT: Shock treat, sanitize, clarify, and help prevent bacteria and algae in your swimming pool water, all with this convenient, easy-to-use product

FEATURES: Multi-use pool shock with Cal Hypo; Use weekly to solve 90% of pool water problems within 24 hours; Fast-acting and fast-dissolving

VISIBLY BRILLIANT SPARKLE: This Cal Hypo based formula sanitizes without adding cyanuric acid (CYA) to prevent overstabilization or chlorine lock

COMPATIBLE WITH ALL SWIMMING POOLS: This product is great for all pool types including vinyl-lined pools and saltwater systems

YOU’RE ALL CLEAR WITH HTH: For best results, use with HTH 6-Way Test Strips to test and balance your swimming pool water twice weekly

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12% Off

Clorox® Pool&Spa™ Swimming Pool Algaecide and Clarifier, Prevents and Treats Pool Algae, Clears Water, 128 Fl Oz (Pack of 1)

Pool Algae Treatment: Our Pool Algaecide and Clarifier is specially formulated to treat existing algae while providing long-lasting defense against stubborn growth, ensuring that your pool remains clear and algae-free for an extended period of time.

Maintain Crystal Clear Water: Kills and prevents all types of swimming pool algae (green, mustard, black algae) for crystal clear swimming pool water.

Non-Foaming Formula: Spend less time maintaining and more time enjoying your pool with this Swimming Pool Algaecide and Clarifier, which features a non-foaming formula.

Suitable for Use in All Types of Pools: This product is proven to meet the needs of every pool owner, as it is compatible with all types of pools, including saltwater pools. You can trust our product to deliver exceptional performance and keep your pool water clean and clear.

For best results, add to the deepest end of the pool with the filter running. Circulating pool water when applying chemicals helps disperse chemicals throughout the pool for maximum coverage

Clorox Pool App: Test like an expert anytime, anywhere with the Clorox Pool App. Solve common swimming pool problems and get personalized product and dosage recommendations.

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10 Swimming Pool Chlorine deals are available from: Amazon, starting from $14.88.

The biggest discount we found is 36% on Chlorine Tablets 3 inch 25 Pounds, TABIT Swimming Pool Long Lasting Chlorinating Tablets, Slow Dissolving, Tri-Chlor for Swim Pool, Hot Tubs, Spa (CTTC-3IN-25) at Amazon.

The lowest price we found is $14.88 while the highest is $164.99. Prices for the best Swimming Pool Chlorine deals average at $66.91.
Last updated on May 1, 2026.

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