20 Best Chlorine Tablets [2024]

Are you looking for the best chlorine tablets? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling chlorine tablets.

We Recommended:

# Preview Product
1 HTH 42042 Super 3' Chlorinating Tablets Swimming Pool Chlorine, 5 lbs HTH 42042 Super 3" Chlorinating Tablets Swimming Pool Chlorine, 5 lbs
2 Clorox Pool&Spa Small Pool 1' Chlorinating Tablets 1.5 lb Clorox Pool&Spa Small Pool 1" Chlorinating Tablets 1.5 lb
3 HTH 42031 1' Chlorinating Tablets Swimming Pool Chlorine, 5 lbs HTH 42031 1" Chlorinating Tablets Swimming Pool Chlorine, 5 lbs
4 Rx Clear 1-Inch Stabilized Chlorine Tablets | Use As Bactericide, Algaecide, and Disinfectant in... Rx Clear 1-Inch Stabilized Chlorine Tablets | Use As Bactericide, Algaecide, and Disinfectant in...
5 SpaGuard Chlorinating Concentrate - 2 lbs SpaGuard Chlorinating Concentrate - 2 lbs
6 CLOROX Pool&Spa XtraBlue 3-Inch Long Lasting Chlorinating Tablets, 5-Pound Chlorine CLOROX Pool&Spa XtraBlue 3-Inch Long Lasting Chlorinating Tablets, 5-Pound Chlorine
7 In The Swim 3 Inch Stabilized Chlorine Tablets for Sanitizing Swimming Pools - Individually Wrapped,... In The Swim 3 Inch Stabilized Chlorine Tablets for Sanitizing Swimming Pools - Individually...
8 HTH 42033 Super 3' Chlorinating Tablets Swimming Pool Chlorine, 5 lbs HTH 42033 Super 3" Chlorinating Tablets Swimming Pool Chlorine, 5 lbs
9 Clorox Pool&Spa XtraBlue 3' Long Lasting Chlorinating Tablets 35 lb Clorox Pool&Spa XtraBlue 3" Long Lasting Chlorinating Tablets 35 lb
10 Clorox Pool&Spa 22401CLX Chlorinating Tablets, 6 oz, White Clorox Pool&Spa 22401CLX Chlorinating Tablets, 6 oz, White
11 Clorox Pool&Spa Active99 3” Chlorinating Tablets 12 lb. Clorox Pool&Spa Active99 3” Chlorinating Tablets 12 lb.
12 Spa Choice 472-3-5081 Sanitizing Granules Hot Tub Chlorine 5-Pounds, 1-Pack Spa Choice 472-3-5081 Sanitizing Granules Hot Tub Chlorine 5-Pounds, 1-Pack
13 Clorox Pool&Spa Active99 3” Chlorinating Tablets 35 lb. Clorox Pool&Spa Active99 3” Chlorinating Tablets 35 lb.
14 HTH 42043 Super 3' Chlorinating Tablets Swimming Pool Chlorine, 8 lbs HTH 42043 Super 3" Chlorinating Tablets Swimming Pool Chlorine, 8 lbs
15 Clorox Pool&Spa XtraBlue 3' Long Lasting Chlorinating Tablets 25 lb Clorox Pool&Spa XtraBlue 3" Long Lasting Chlorinating Tablets 25 lb
16 Septicfit Septic Chlorine Tablet - 6 Tablet Pail - 2 lbs - NOT for USE in Swimming Pools Septicfit Septic Chlorine Tablet - 6 Tablet Pail - 2 lbs - NOT for USE in Swimming Pools
17 ONGUARD Industries 1 inch Maxi-Clor Chlorinating Tablets Swimming Pool Chlorine Tabs,1.5 lbs ONGUARD Industries 1 inch Maxi-Clor Chlorinating Tablets Swimming Pool Chlorine Tabs,1.5 lbs
18 HTH 52026 Super Shock Treatment Swimming Pool Chlorine Cleaner, 1 lb (Pack of 12) HTH 52026 Super Shock Treatment Swimming Pool Chlorine Cleaner, 1 lb (Pack of 12)
19 HTH 42032 Super 3-inch Chlorinating Tablets Swimming Pool Chlorine Sanitizer, 6 oz HTH 42032 Super 3-inch Chlorinating Tablets Swimming Pool Chlorine Sanitizer, 6 oz
20 Septicfit Septic Chlorine Tablet - 4 Pail Value Pack - 6 Tablet Pails - 8.2 lbs - NOT for USE in... Septicfit Septic Chlorine Tablet - 4 Pail Value Pack - 6 Tablet Pails - 8.2 lbs - NOT for USE in...
Bestseller No. 1
HTH 42042 Super 3" Chlorinating Tablets Swimming Pool Chlorine, 5 lbs
  • BENEFITS: Sanitizes and protects your pool water so you can enjoy swimming in clean and clear water all season long
  • USE: Place a tab in pool skimmer, floater, or feeder for simple, DIY pool care; 1 tablet treats 10,000 gallons of water for up to a week
  • COMPATIBILITY: Vinyl-lined pools and saltwater systems
  • FEATURES: Kills bacteria and algae; Chlorinates for up to 1 week; Clarifies water; Sun protected for longer chlorine life
  • INCLUDES: One 5-lb container of Super Chlorinating Tablets for swimming pools
SaleBestseller No. 2
Clorox Pool&Spa Small Pool 1" Chlorinating Tablets 1.5 lb
  • Kills bacteria and prevents algae
  • Protected against sunlight to last longer
  • For pools up to 5, 000 gallons. Prevents unsightly pool algae
  • NOTE: Packaging may vary*
Bestseller No. 3
HTH 42031 1" Chlorinating Tablets Swimming Pool Chlorine, 5 lbs
  • BENEFITS: Sanitizes and protects your pool water so you can enjoy swimming all season long; kills bacteria and algae with built-in algaecide
  • USE: Place tabs in pool skimmer, floater, or feeder for simple, DIY pool care
  • COMPATIBILITY: Vinyl pools and saltwater systems, smaller type pools
  • FEATURES: Easy to use; Dissolves slowly for a steady application of chlorine to your indoor or outdoor pool for up to a week; sun protected
  • INCLUDES: One 5-pound pail of Chlorinating Tablets for swimming pools
Bestseller No. 4
Rx Clear 1-Inch Stabilized Chlorine Tablets | Use As Bactericide, Algaecide, and Disinfectant in...
  • ADAPTABLE TO YOUR POOL OR HOT TUB - Use 16 ounces per 10,000 gallons of pool water per week by adding the pool chlorine tablets to your floating...
  • EASY TO USE - Each chlorinating tablet weighs 0.5 oz. Each bucket comes with multiple bagged tablets to help reduce the chemical mess
  • LONG LASTING - These Rx Clear chlorine tabs are slow dissolving, 90% available chlorine, 99% Trichlor. Note: Some of the tablets may be cracked or...
  • LOW PRICE, HIGH QUALITY - Compared to other brands, the Rx Clear brand provides more available chlorine in each tab at a much lower cost
  • TRUSTED POOL SUPPLIES - Rx Clear has high quality pool chemicals and pool accessories for a great value. Trust Rx Clear to balance your pool and spa...
Bestseller No. 5
SpaGuard Chlorinating Concentrate - 2 lbs
  • Granular stabilized chlorinator
  • Acts as a sanitizer and an oxidizer; no need for two products
  • Fast acting
  • Quick dissolving
  • May be added directly to spa, no predissolving needed
SaleBestseller No. 6
CLOROX Pool&Spa XtraBlue 3-Inch Long Lasting Chlorinating Tablets, 5-Pound Chlorine
  • Kills bacteria
  • Kills and prevents all types of pool algae
  • Prevents corrosion, scale and stains
  • Long-lasting sunlight protection
  • NOTE: Packaging may vary
SaleBestseller No. 7
In The Swim 3 Inch Stabilized Chlorine Tablets for Sanitizing Swimming Pools - Individually Wrapped,...
  • 90% available chlorine
  • 3" Chlorine Tablets are slow-dissolving and stabilized
  • 8 oz. individually wrapped tablets in easy-open bags
  • 99% Trichloro-S-Triazinetrione (Trichlor)
  • Perfect size for floaters or any automatic chlorine feeder
Bestseller No. 8
HTH 42033 Super 3" Chlorinating Tablets Swimming Pool Chlorine, 5 lbs
  • BENEFITS: Sanitizes and protects your pool water so you can enjoy swimming in clean and clear water all season long
  • USE: Place a tab in pool skimmer, floater, or feeder for simple, DIY pool care; 1 tablet treats 10,000 gallons of water for up to a week
  • COMPATIBILITY: Vinyl-lined pools and saltwater systems
  • FEATURES: Kills bacteria and algae; Chlorinates for up to 1 week; Clarifies water; Sun protected for longer chlorine life
  • INCLUDES: One 5-lb container of Super Chlorinating Tablets for swimming pools
Bestseller No. 9
Clorox Pool&Spa XtraBlue 3" Long Lasting Chlorinating Tablets 35 lb
  • Controls algae
  • Kills bacteria
  • Prevents corrosion and scale
  • Removes organic contaminants for clear water
  • Makes water silky smooth
SaleBestseller No. 10
Clorox Pool&Spa 22401CLX Chlorinating Tablets, 6 oz, White
  • 99% Trichloro pool chlorine tablet that maintains a healthy pool
  • Kills harmful bacteria
  • Long-lasting sunlight protection
  • Controls pool algae
  • Skimmer, feeder or floater applications
Bestseller No. 11
Clorox Pool&Spa Active99 3” Chlorinating Tablets 12 lb.
  • 99% Trichloro pool chlorine tablet that maintains a healthy pool, Packaging may Vary
  • Kills harmful bacteria
  • Long lasting sunlight protection
  • Controls pool algae
  • Skimmer, feeder or floater applications
Bestseller No. 12
Spa Choice 472-3-5081 Sanitizing Granules Hot Tub Chlorine 5-Pounds, 1-Pack
  • Dissolves Quickly and Completely
  • Stabilized Spa Chlorine
  • 56% Available Chlorine
  • Controls Algae
  • Kills Bacteria
SaleBestseller No. 13
Clorox Pool&Spa Active99 3” Chlorinating Tablets 35 lb.
  • Everything you need in 1 individually wrapped tablet
  • Prevents algae and kills bacteria
  • Use in skimmer, feeder or floater
  • Controls pool algae
SaleBestseller No. 14
HTH 42043 Super 3" Chlorinating Tablets Swimming Pool Chlorine, 8 lbs
  • BENEFITS: Sanitizes and protects your pool water so you can enjoy swimming in clean and clear water all season long
  • USE: Place a tab in pool skimmer, floater, or feeder for simple, DIY pool care; 1 tablet treats 10,000 gallons of water for up to a week
  • COMPATIBILITY: Vinyl-lined pools and saltwater systems
  • FEATURES: Kills bacteria and algae; Chlorinates for up to 1 week; Clarifies water; Sun protected for longer chlorine life
  • INCLUDES: One 8-lb container of Super Chlorinating Tablets for swimming pools
SaleBestseller No. 15
Clorox Pool&Spa XtraBlue 3" Long Lasting Chlorinating Tablets 25 lb
  • Protects against algae and bacteria for water that stays clean, clear and free of visible algae
  • Kills all types of pool algae and kills bacteria
  • Protected against sunlight to last longer
  • Packaging may vary
Bestseller No. 16
Septicfit Septic Chlorine Tablet - 6 Tablet Pail - 2 lbs - NOT for USE in Swimming Pools
  • For use in Aerobic Treatment Systems
  • Resealable Containers
  • 68% Calcium Hypochlorite
  • NOT FOR USE IN SWIMMING POOLS
Bestseller No. 17
ONGUARD Industries 1 inch Maxi-Clor Chlorinating Tablets Swimming Pool Chlorine Tabs,1.5 lbs
  • Concentrated, stabilized, completely soluble formula to prevent mineral scale buildup and clear your swimming pool water. UV resistant sun protection...
  • Convenient 1 inch chlorinating sanitizer tablets to disinfect and clean pools of all sizes with minimal effort.
  • Salt system compatible super chlorinating tablets made to work in pools of all sizes.
  • Chlorinates for up to 1 week, disinfecting water, and producing crystal clear pool water, a great value for the DIY pool caretaker.
  • For floaters, feeders, and skimmer baskets. 1.5-pound container of 1” chlorine tablets for chlorinating swimming pools around the clock. Tablets...
Bestseller No. 18
HTH 52026 Super Shock Treatment Swimming Pool Chlorine Cleaner, 1 lb (Pack of 12)
  • BENEFITS: Increases the chlorine level in swimming pools to kill bacteria and algae to keep your pool water clear and ready for fun all season long
  • USE: Apply directly to pool water as needed; Test pool water and shock weekly to keep free available chlorine levels between 1 and 4ppm
  • COMPATIBILITY: Effective for all swimming pool types including pools with liners and Gunite pools, and saltwater pool systems
  • FEATURES: Increases chlorine levels; Kills and prevents bacteria and algae; Keeps water clear; See results in 24 hours; 1 bag treats 13, 500 gallons;...
  • INCLUDES: Twelve 1-lb bags of shock treatment for your swimming pool
SaleBestseller No. 19
HTH 42032 Super 3-inch Chlorinating Tablets Swimming Pool Chlorine Sanitizer, 6 oz
  • BENEFITS: Sanitizes and protects your pool water so you can enjoy swimming in clean and clear water all season long
  • USE: Place a tab in pool skimmer, floater, or feeder for simple, DIY pool care; 1 tablet treats 10,000 gallons of water for up to a week
  • COMPATIBILITY: Vinyl-lined pools and saltwater systems
  • FEATURES: Kills bacteria and algae; Chlorinates for up to 1 week; Clarifies water; Sun protected for longer chlorine life
  • INCLUDES: One 3-inch Super Chlorinating Tablet for swimming pools
Bestseller No. 20
Septicfit Septic Chlorine Tablet - 4 Pail Value Pack - 6 Tablet Pails - 8.2 lbs - NOT for USE in...
  • 4 Pail Value Pack - 6 Tablet Pails
  • Designed for use in Aerobic Treatment Systems
  • Resealable Containers
  • 68% Calcium Hypochlorite
  • NOT FOR USE IN SWIMMING POOLS

Having trouble finding a great chlorine tablets?

This problem is well understood by us because we have gone through the entire chlorine tablets research process ourselves, which is why we have put together a comprehensive list of the best chlorine tabletss available in the market today.

After hours of searching and using all the models on the market, we have found the best chlorine tablets for 2023. See our ranking below!

How Do You Buy The Best Chlorine Tablets?

Do you get stressed out thinking about shopping for a great chlorine tablets? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching chlorine tablets, which is why we have assembled a comprehensive list of the greatest chlorine tablets available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for chlorine tablets that you consider buying. Your questions might include the following:

  • Is it worth buying an chlorine tablets?
  • What benefits are there with buying an chlorine tablets?
  • What factors deserve consideration when shopping for an effective chlorine tablets?
  • Why is it crucial to invest in any chlorine tablets, much less the best one?
  • Which chlorine tablets are good in the current market?
  • Where can you find information like this about chlorine tablets?

We’re convinced that you likely have far more questions than just these regarding chlorine tablets, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for chlorine tablets, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible chlorine tablets. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an chlorine tablets buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available chlorine tablets currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of chlorine tablets has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an chlorine tablets?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your chlorine tablets.
  5. Customer Ratings: Number ratings grade chlorine tablets objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their chlorine tablets.
  7. Product Quality: You don’t always get what you pay for with an chlorine tablets, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an chlorine tablets is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining chlorine tablets information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding chlorine tablets is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

FAQ:

Q: How/when to use chlorine tablets?

A: Figure out the size of your pool,including how many gallons of water it holds,with an online calculator. Pick a stabilized chlorine tablet for your swimming pool maintenance. Stabilized tablets contain cyuranic acid as well as chlorine,which helps keep the pool’s pH level consistent. Use a tablet dispenser to shock your pool with chlorine tablets. …

Q: What is a good substitute for chlorine?

A: Bromine. What it is: Pool suppliers sometimes suggest bromine as a substitute for chlorine. … Ionizers. What it is: Ionizers rely on two dissimilar metals–often copper (an algaecide) and silver (a sanitizer)–sent charged into the water as the sanitizer. Ozonators. What it is: An ozonator is a machine that attaches to the filtration plumbing line. … PHMB. …

Q: Where can you buy chlorine tablets?

A: The tablets are likely to be Trichlor and you get those either at a pool store or some big-box stores (Home Depot, etc.) and may be called “stabilized chlorine tablets”. Just realize that continued use of Trichlor (or Dichlor) will increase the Cyanuric Acid (CYA) level of the pool making the chlorine less effective against preventing algae growth.

Q: Is chlorine a good disinfectant?

A: Disinfectant property. Chlorine has high disinfectant properties that normally eliminate 99% of bacteria and viruses including the entire family of Coronaviruses, additionally eliminating other pathogens that are potentially harmful such as E.coli, Norovirus, Shigella, Salmonella, Cold Virus as among others.

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