10 Best Chlorine Tablets 2020

Gareth Otwell Reviewed by Gareth Otwell | Last Updated:

After analyzing 596 products, scanning 2265 reviews, spending more than 36 hours of research and speaking with our test users, we think the HTH 42033 Super 3" Chlorinating Tablets Swimming Pool Chlorine is the one of the Best Chlorine Tablets on the market.

# Image Name Brand Price
1
⭐Best Choice
HTH 42033 Super 3" Chlorinating Tablets Swimming Pool Chlorine
HTH 42033 Super 3" Chlorinating Tablets Swimming Pool Chlorine, 5 lbs Check price HTH $$$$$ Check price
2 HTH 42037 Super 3-inch Chlorinating Tablets for Swimming Pools HTH 42037 Super 3-inch Chlorinating Tablets for Swimming Pools, 8 lbs Check price HTH $$$$$ Check price
3 In The Swim 3" Inch Pool Chlorine Tablets In The Swim 3" Inch Pool Chlorine Tablets - 50 Pounds Check price In The Swim $$$$$ Check price
4
💲Best value for the money
HTH 42032 Super 3-inch Chlorinating Tablets Swimming Pool Sanitizer
HTH 42032 Super 3-inch Chlorinating Tablets Swimming Pool Sanitizer, 6 oz Check price HTH $$$$$ Check price
5 Rx Clear 3-Inch Individually Wrapped Chlorine Tablets | One 50-Pound Rx Clear 3-Inch Individually Wrapped Chlorine Tablets | One 50-Pound Bucket | Use As Bactericide, Algaecide, and Disinfectant in Swimming Pools and Spas | Slow Dissolving and UV Protected Check price Rx Clear $$$$$ Check price
6 Aqua Clear 21005ACL Pool Products Chlorinating Tablets Aqua Clear 21005ACL Pool Products Chlorinating Tablets, 5 lb Check price Aqua Clear $$$$$ Check price
7
👑Premium Pick
Star Plus 50-Pound Bucket of Swimming Pool/Spa 3-Inch Wrapped Chlorinating
Star Plus 50-Pound Bucket of Swimming Pool/Spa 3-Inch Wrapped Chlorinating Tablets, 50 lbs Check price Star Plus $$$$$ Check price
8 Kem-Tek 2815-6 Chlorinating Tablets 1-Inch Pool and Spa Chemicals Kem-Tek 2815-6 Chlorinating Tablets 1-Inch Pool and Spa Chemicals, 1.5-Pound Check price Kem-Tek $$$$$ Check price
9 HTH 42031 1-inch Chlorinating Tablets for Swimming Pools HTH 42031 1-inch Chlorinating Tablets for Swimming Pools, 5 lbs Check price HTH $$$$$ Check price
10 Rx Clear 1-Inch Stabilized Chlorine Tablets | Use As Bactericide Rx Clear 1-Inch Stabilized Chlorine Tablets | Use As Bactericide, Algaecide, and Disinfectant in Swimming Pools and Spas | Slow Dissolving and UV Protected | 8 Lbs Check price Rx Clear $$$$$ Check price

HTH 42033 Super 3" Chlorinating Tablets Swimming Pool Chlorine – Best Overall Chlorine Tablet

HTH 42033 Super 3" Chlorinating Tablets Swimming Pool Chlorine
  • 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

HTH 42037 Super 3-inch Chlorinating Tablets for Swimming Pools

HTH 42037 Super 3-inch Chlorinating Tablets for Swimming Pools
  • 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

In The Swim 3" Inch Pool Chlorine Tablets

In The Swim 3" Inch Pool Chlorine Tablets
  • 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

HTH 42032 Super 3-inch Chlorinating Tablets Swimming Pool Sanitizer – Best Budget Chlorine Tablet

HTH 42032 Super 3-inch Chlorinating Tablets Swimming Pool Sanitizer
  • 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 25-lb container of Super Chlorinating Tablets for swimming pools

Rx Clear 3-Inch Individually Wrapped Chlorine Tablets | One 50-Pound

Rx Clear 3-Inch Individually Wrapped Chlorine Tablets | One 50-Pound
  • ADAPTABLE TO YOUR POOL OR HOT TUB - Use 2 tablets per 10,000 gallons of pool water as needed by adding the pool chlorine tablets to your existing inline/offline chlorinator and using the flow of your pump to dissolve and distribute the pool chemicals or to a floating chlorine dispenser.
  • EASY TO USE - Each individually wrapped chlorinating tablet weighs 7 ounces
  • LONG LASTING - These Rx Clear chlorine tabs are slow dissolving, 90% available chlorine, 99% Trichlor. Note: Some of the tablets may be cracked or broken within their packaging due to shipping. This breakage is normal and does not reduce the effectiveness of these tabs
  • LOW PRICE, HIGH QUALITY - Compared to HTH, Bioguard and Clorox. 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 chemistry and keep your water safe and clear

Aqua Clear 21005ACL Pool Products Chlorinating Tablets

Aqua Clear 21005ACL Pool Products Chlorinating Tablets
  • Kills bacteria
  • Long-lasting sunlight protection
  • 99% Tricholor
  • 1" Tablet
  • 5 lb

Star Plus 50-Pound Bucket of Swimming Pool/Spa 3-Inch Wrapped Chlorinating – Premium Pick

Star Plus 50-Pound Bucket of Swimming Pool/Spa 3-Inch Wrapped Chlorinating
  • INDIVIDUALLY WRAPPED CHLORINE TABLETS: Individually-wrapped, jumbo 3-inch Trichlor tablets in a convenient 50-pound bucket that kills bacteria and controls algae and mineral scale build-up in your swimming pool and
  • COMPATIBILITY: Compatible with all above ground or in-ground swimming pools
  • WHERE TO USE: Ideal for use in feeders, floaters, and skimmer baskets
  • PERFORMANCE: 24-hour residual chlorine performance for round the clock activity
  • EPA APPROVED: Will not cloud water and is EPA approved in all states

Kem-Tek 2815-6 Chlorinating Tablets 1-Inch Pool and Spa Chemicals

Kem-Tek 2815-6 Chlorinating Tablets 1-Inch Pool and Spa Chemicals
  • For every pool sanitization and super chlorination
  • Slow dissolving and concentrated for long lasting sanitation
  • Stabilized to reduce chlorine loss to the sun's UV rays
  • Maintains strong and steady chlorine residual
  • Economical size for pop up pools and small above ground pools

HTH 42031 1-inch Chlorinating Tablets for Swimming Pools

HTH 42031 1-inch Chlorinating Tablets for Swimming Pools
  • 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

Rx Clear 1-Inch Stabilized Chlorine Tablets | Use As Bactericide

Rx Clear 1-Inch Stabilized Chlorine Tablets | Use As Bactericide
  • 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 chlorinator or a inline/offline chlorinator and using the flow of your pump to dissolve and distribute the pool chemicals
  • 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 broken within their packaging due to shipping. This breakage is normal and does not reduce the effectiveness of these tabs
  • LOW PRICE, HIGH QUALITY - Compared to HTH, Bioguard and Clorox. 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 chemistry and keep your water safe and clear

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