10 Best Doheny's 3 Chlorinating Tablets of 2025

Tested and Reviewed: Top 10 Doheny's 3 Chlorinating Tablets deals with expert ratings from 8.1 to a perfect 10

March 2026 Edition

Editor's Choice

9.7

Doheny's

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

Editor's bottom line:

“This doheny's 3 chlorinating tablets is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Long-Lasting Chlorine Tabs: Pre-stabilized against UV rays to prevent chlorine burn-off for extended effectiveness.
Premium Ingredients: Made from 99% pure Trichloro-S-Triazinetrione with 90% available chlorine for superior sanitation.
Family-Safe Design: Each 50lb bucket features a childproof locking lid, and individually wrapped 3-inch tablets minimize odor, dust, and skin contact.
Easy Application: Simply place in a pool skimmer, floater, or feeder for hassle-free chlorine distribution.
Trusted Quality: With over 50 years of expertise, Dohenys delivers premium-grade 3-inch chlorine tablets for crystal-clear pool water.

Show Price

Picked by 397 people today

9.5

Save 8%

Doheny's

Doheny’s 3-Inch Stabilized Chlorine Tablets for Sanitizing Swimming Pools | 99% Pure Tri-Chlor, 90% Available Chlorine | Long-Lasting, UV-Protected, Slow-Dissolving | Individually Wrapped 25lb Bucket

8% Off

Main Highlights

Long-Lasting Chlorine Tabs: Pre-stabilized against UV rays to prevent chlorine burn-off for extended effectiveness.
Premium Ingredients: Made from 99% pure Trichloro-S-Triazinetrione with 90% available chlorine for superior sanitation.
Family-Safe Design: Each 50lb bucket features a childproof locking lid, and individually wrapped 3-inch tablets minimize odor, dust, and skin contact.
Easy Application: Simply place in a pool skimmer, floater, or feeder for hassle-free chlorine distribution.
Trusted Quality: With over 50 years of expertise, Dohenys delivers premium-grade 3-inch chlorine tablets for crystal-clear pool water.

Show Price

9.5

Doheny's

Doheny’s 3-Inch Stabilized Chlorine Tablets for Sanitizing Swimming Pools | 99% Pure Tri-Chlor, 90% Available Chlorine | Long-Lasting, UV-Protected, Slow-Dissolving | Individually Wrapped 10lb Bucket

Main Highlights

Long-Lasting Chlorine Tabs: Pre-stabilized against UV rays to prevent chlorine burn-off for extended effectiveness.
Premium Ingredients: Made from 99% pure Trichloro-S-Triazinetrione with 90% available chlorine for superior sanitation.
Family-Safe Design: Each 50lb bucket features a childproof locking lid, and individually wrapped 3-inch tablets minimize odor, dust, and skin contact.
Easy Application: Simply place in a pool skimmer, floater, or feeder for hassle-free chlorine distribution.
Trusted Quality: With over 50 years of expertise, Dohenys delivers premium-grade 3-inch chlorine tablets for crystal-clear pool water.

Show Price

9.2

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 5lb Bucket

Main Highlights

Doheny's 3" Chlorine Tablets - 5 lb.

Show Price

9.0

Save 14%

TABIT

TABIT 3" Chlorine Tabs, 3 Inch Chlorinating Tablets 5 lbs for Swimming Pool, Spa and Hot Tub, Slow Dissolving

14% Off

Main Highlights

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.

Show Price

8.8

Save 20%

PROFELIZ

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

20% Off

Main Highlights

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 3chlorine 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.

Show Price

8.6

Save 26%

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

26% Off

Main Highlights

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

Show Price

8.3

CLOROX Pool&Spa

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

Main Highlights

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

Show Price

Best Value

8.1

Save 29%

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

29% Off

Main Highlights

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

Show Price

8.1

In The Swim

In The Swim 3 Inch Stabilized Chlorine Tablets for Sanitizing Swimming Pools - Individually Wrapped, Slow Dissolving - 90% Available Chlorine - Tri-Chlor - 10 Pounds

Main Highlights

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

Show Price

Our Best Overall Choice

Best Choice

9.7

Doheny's

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

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Long-Lasting Chlorine Tabs: Pre-stabilized against UV rays to prevent chlorine burn-off for extended effectiveness.
Premium Ingredients: Made from 99% pure Trichloro-S-Triazinetrione with 90% available chlorine for superior sanitation.
Family-Safe Design: Each 50lb bucket features a childproof locking lid, and individually wrapped 3-inch tablets minimize odor, dust, and skin contact.
Easy Application: Simply place in a pool skimmer, floater, or feeder for hassle-free chlorine distribution.
Trusted Quality: With over 50 years of expertise, Dohenys delivers premium-grade 3-inch chlorine tablets for crystal-clear pool water.

Show Price

Deals are Live

Special Amazon deal ends in: