Best Swimming Pool Chlorine Powder (April 2024) - Rated by CherryPicks' Experts

At a Glance: Our Top Picks

Top 1

HTH 22017 Swimming Pool Care Chlorine Granules Ultra, Swimming Pool Chlorinat...

9.9
CPR Score
Top 2

Rx Clear Stabilized Granular Chlorine | One 50-Pound Bucket | Use As Bacteric...

9.7
CPR Score
Top 3

Clorox Pool&Spa 12004CLX Chlorine Stabilizer, 4 lb, 4lb

9.7
CPR Score
Tips


Our team has selected the top 26 best Swimming Pool Chlorine Powder. We found and analyzed dozens of products, analyzed & compared 233 Swimming Pool Chlorine Powder with different brands, including Clorox, API, In The Swim, HTH, Rx Clear, Cesco Solutions, Inc., Doheny's, zengxiaoyun, YUMITIS, YaCaTaM, Coral Seas, DryTec, Pool Mate, MAV AquaDoc, Adevit, CPDI, GLB And Leslie's, and analyzed 74,259 consumer reviews for Pools, Hot Tubs & Supplies products.

* Cherrypicksreviews.com is reader-supported, Our editor review, and recommend the best products based on extensive data analysis, if you click on the product links, we may earn a commission through qualifying products purchased.

The Best Swimming Pool Chlorine Powder Rated by CherryPicks

Market Overview
Swimming Pool Chlorine Powder Reviewed
  • Reviews Analyzed: 74,259 Items
  • CPR Avg. Rating: 8.6 / 10
26 Products Evaluated
  • Highest Price: $259.99
  • Lowest Price: $6.97
  • Avg. Price: $78.54
Price Disclaimer

Top 26 Swimming Pool Chlorine Powder on Amazon (Verified You can Buy)

HTH 22017 Swimming Pool Care Chlorine Granules Ultra, Swimming Pool Chlorinating Sanitizer & Shock, 5lb

HTH
22017
7.2 x 3.6 x 10.5 Inches
5.0 Pounds

Ratings for HTH (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Angel Seller 1,945
Supernova Co. 6,480
SSARM -

Features

BENEFIT: Get the ultimate in pool care convenience with this all-in-one Cal Hypo formula; Sanitizes, controls algae, clarifies, softens pool water, and even prevents stain and scale to keep your pool clean, clear, and ready for summer fun
VISIBLY BRILLIANT SPARKLE: This Cal Hypo based formula sanitizes and shock treats without adding cyanuric acid (CYA) to prevent overstabilization or chlorine lock
Show More

Rx Clear Stabilized Granular Chlorine | One 50-Pound Bucket | Use As Bactericide, Algaecide, and Disinfectant in Swimming Pools and Spas | Fast Dissolving and UV Protected

Rx Clear
13.0 x 13.0 x 18.0 Inches
50.0 Pounds

Ratings for Rx Clear (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Save More On Pool Supplies 2,094

Features

CLEAR WATER FOR SAFE SWIMMING - Swimming in crystal clear water does not mean your skin has to suffer. The granular chlorine is 99% sodium diclor making a relaxing swim not as harsh.
LONG LASTING - Dichlor resists UV light, lasting longer than other types of chlorinating supplies due to built in stabilizer for your swimming pool, hot tub, or spa.
Show More

Clorox Pool&Spa 12004CLX Chlorine Stabilizer, 4 lb, 4lb

Clorox
12004CLX
4.4 x 10.0 x 11.5 Inches
4.0 Pounds

Ratings for Clorox (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Helps chlorine last longer
Reduces sun's impact on chlorine
Show More

HTH 52035 Swimming Pool Care Shock Advanced, Swimming Pool Chemical, Cal Hypo Formula, 1lb

HTH
52035
4.5 x 1.0 x 11.0 Inches

Ratings for HTH (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

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
Show More

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
C3050
20.0 x 13.0 x 13.0 Inches
55.0 Pounds

Ratings for In The Swim (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
In The Swim Pool Supplies 324

Features

Eliminate bacteria, algae, and other organic contaminants, keeping your pool clean and clear all season long.
99% Trichloro-S-Triazinetrione and 90% available stabilized chlorine.
Show More
Top 6

Leslie's Power Powder Plus Flagship Pool Shock and Super-Chlorinator, 1lb - 12 Pack

Leslie's

Ratings for Leslie's (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
PoolSupplies&More -
Great Cost -

Pool Mate 1-1308 Granules Swimming Pool Chlorine, 8-Pounds

Pool Mate
1-1308
9.0 x 9.0 x 9.0 Inches
8.0 Pounds

Ratings for Pool Mate (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

Powerful, super-concentrated, residue-free, and fast-dissolving
Customers prefer chlorinating granules because it has little to no effect on pH levels
Show More
Top 8

Champion Pool Shock - Ready to Use Liquid Chlorine - Commercial Grade 12.5% Concentrated Strength - 8 Gallon

CPDI
8068779
12.0 x 12.0 x 12.0 Inches
11.25 Pounds

Ratings for CPDI (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
CPDI -

Features

Product Does Not Cloud Pool
Ready To Use, No Mixing Required - Great Choice for Pool Closings
Show More
Top 9

Leslie's Power Powder Plus - 73% Granular Calcium Hypochlorite (Cal-Hypo) Swimming Pool Shock Sanitizer - 1 Pound

Leslie's
9.0 x 4.0 x 1.0 Inches
1.0 Pounds

Ratings for Leslie's (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Great Cost -

Features

Kills bacteria, controls algae, and destroys organic contaminants
Concentrated chlorinating granular Cal-Hypo pool shock
Show More
Top 10

Rx Clear Mega Shock | 73% Calcium Hypochlorite | Kills Algae in Swimming Pools | Works As Pool Sanitizer Clarifier and Algicide | One Pound Bags | 24 Pack

Rx Clear
1.0 Pounds

Ratings for Rx Clear (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Save More On Pool Supplies 2,094

Features

MULTI-PURPOSE - This swimming pool shock works as a strong sanitizer, clarifier, and algicide for clear blue water.
EXTRA POWER - Due to its high percentage of chlorine, Mega Shock is a very effective treatment for a quick chlorine boost. The Rx Clear Mega shock packets are chlorinating essentials.
Show More

HTH 52036 Swimming Pool Care Shock Advanced, Swimming Pool Chemical, Cal Hypo Formula, (6 pack)

HTH
52036
10.5 x 4.5 x 10.5 Inches
1.0 Pounds

Ratings for HTH (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

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
Show More

HTH 42042 Super 3" Chlorinating Tablets Swimming Pool Chlorine, 5 lbs

HTH
42042
8.25 x 9.85 x 6.5 Inches
5.0 Pounds

Ratings for HTH (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
LeisureQuip, Inc. (HotTubClub) 7,282
smartbooksnow -
bookshop2 9,288
Deanies Distribution LLC -

Features

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
Show More
Top 13

DryTec 367 Calcium Hypochlorite Pool Shock, 1-Pack

DryTec
367
12.0 x 3.0 x 2.0 Inches
1.0 Pounds
  • Unknown: English

Ratings for DryTec (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -

Features

1 bag (1-pound each)
Fast-Acting Quick-Dissolving Swimming Pool Sanitizer
Show More
Top 14

In The Swim Chlorine Shock Granules for Sanitizing Swimming Pools – 56% Available Chlorine – Dichlor – 25 Pound Bucket

In The Swim
C4025
13.7 x 13.5 x 12.2 Inches
28.0 Pounds

Ratings for In The Swim (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
In The Swim Pool Supplies 324

Features

In The Swim's granular chlorine is ideal for use in swimming pools, spas, fountains and water features
Powerful sanitizing powder that destroys bacteria, breaks down contaminants and kills algae
Show More

Yellow Out Swimming Pool Chlorine Shock Enhancing Treatment - 2 lbs.

Coral Seas
FBA_YO-2#
6.0 x 4.0 x 3.7 Inches
2.2 Pounds

Ratings for Coral Seas (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Pool Supplies Superstore 1,951

Features

Compatible with pools operating a chlorine generator
Simple to use, requires no brushing, and cleans up algae gently without the use of harsh chemicals
Show More
Top 16

Rx Clear Super Shock for Swimming Pools | Chlorinator and Algaecide | 68% Calcium Hypochlorite | Kill Pool Algae for a Crystal Clear Pool | 24 lb Bucket of 1lb Bags

Rx Clear
24.0 Pounds

Ratings for Rx Clear (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Save More On Pool Supplies 2,094
Articles of Joy -

Features

POOL SHOCK TREATMENT - Rx Clear’s Super Shock contains 68% calcium hypochlorite, yielding 65% available chlorine making this similar to Mega Shock, but slightly less concentrated. This shock will raise your free chlorine levels, water hardness, and pH levels giving you crystal clear water for a more enjoyable swimming experience. Due to its high percentage of chlorine, Super Shock is very effective and efficient for a quick chlorine boost.
MIX BEFORE YOU FIX - It is best to dilute Super Shock in a bucket of water before dispensing it around the pool which can prevent liner staining and cloudy water. Add this powder to a bucket of water before you add it to your pool. Add a 1 lb bag per 10,000 gallons of pool water.
Show More
Top 17

AquaDoc | Spa Chlorine Granules for Hot tub - Spa Sanitizing Granules for Hot Tubs - Recommended Chlorine for spa - Granulated Chlorine for hot tub and spa - Hot Tub Chlorinating Granules - 5Lbs

MAV AquaDoc
granules
8.19 x 2.48 x 2.36 Inches
5.0 Pounds

Ratings for MAV AquaDoc (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
MAV Aqua Doc -

Features

Fast Acting Chlorinating Granules for Hot Tub - Clean your water the right way - with AquaDoc's spa chlorine treatment. AquaDoc Chlorinating granules work fast to get clean & clear water for hot tubs & spas. Use AquaDoc's chlorine for spa and you'll get results.
The Chlorine Spa Owners Love - Whether it's a hot tub or spa, our hot tub chlorinating granules help you treat any build-up. Our granules make it easy to adjust dosing of the chlorine granules, making it easy to use our chlorine for hot tub.
Show More

In The Swim Instant Liquid Chlorine for Swimming Pool – Removes Harmful Contaminants – 73% Calcium Hypochlorite – (4) 1 Pound Containers

In The Swim
F016004034AE
8.6 x 8.6 x 7.2 Inches
5.39 Pounds

Ratings for In The Swim (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
In The Swim Pool Supplies 324

Features

Powdered granular chlorine mixture that turns into liquid shock for swimming pools instantly upon contact with water.
Contains 73% calcium hypochlorite which effectively removes harmful water contaminants from your swimming pool, leaving your pool clean and refreshing.
Show More
Top 19

HTH 52039 Swimming Pool Care Shock Ultra, Swimming Pool Chemical, Cal Hypo Formula, 1lb

HTH
52039
1.0 x 4.5 x 11.0 Inches
0.0006 Pounds

Ratings for HTH (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Amazon.com -
Home and Country USA 7,452

Features

BENEFIT: Use this all-in-one powerhouse pool shock to increase chlorine levels, prevent bacteria, algae, stain, and scale, reduce skin and eye irritation, improve filtration, and soften your swimming pool water quickly and easily
VISIBLY BRILLIANT SPARKLE: This Cal Hypo based formula sanitizes without adding cyanuric acid (CYA) to prevent overstabilization or chlorine lock
Show More
Top 20

Doheny's Chlorine-Free Oxidizing Shock for Swimming Pools | 100% Professional-Grade | Quick-Dissolving Granular Formula | Safe For All Pool Types And Surfaces | 43% Potassium Monopersulfate | Swim In Just 15 Minutes After Application | 24 x 1 LB Bags

Doheny's
7705
24.0 Pounds

Ratings for Doheny's (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Doheny's Pool Supplies Fast 4,428

Features

Non-Chlorine Oxidizing Pool Shock: Features a powerful oxidizing agent that eliminates spent or used chlorine cells (chloramines) and increases free chlorine levels
Fast-Dissolving Non-Chlorine Oxidizing Shock: Quick-dissolving granular formula breaks up chloramines to effectively "oxidize" spent or used chlorine cells
Show More
Top 21

Pool Dechlorinator Sodium Thiosulfate Pentahydrate 5 lbs by Cesco Solutions - Premium Chlorine Neutralizer for Pools, Aquarium, Pond - Technical-Grade Chlorine Remover for Hot Tubs - Bulk Package

Cesco Solutions, Inc.
2654005LB
5.0 Pounds

Ratings for Cesco Solutions, Inc. (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Cesco Solutions, Inc. -

Features

✔️ TECHNICAL-GRADE CHLORINE ELIMINATOR will remove chlorine and bromine from residential water. Get rid of that annoying chlorine smell in your swimming pool, pond, aquarium or fish tank effortlessly.
✔️ MEGA-VALUE POOL CHLORINE REMOVER: Our multipurpose chlorine stabilizer comes in a sturdy 5-lbs package, which is reusable, easy-to-use, and budget-friendly. No need to buy costly pool-specific de-chlorinators.
Show More

In The Swim Pool Shock – 68% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends Against Bacteria, Algae, and Microorganisms- 24 X 1 Pound

In The Swim
25266 2X12X1
11.3 x 11.3 x 10.4 Inches
27.0 Pounds

Ratings for In The Swim (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
In The Swim Pool Supplies 324
Pool Supply Warehouse 2,475

Features

Powerful chlorine shock treatment that is great for regular maintenance.
Quickly eliminates algae, bacteria, and other harmful contaminants from your pool water.
Show More
Top 23

GLB 71222A Lonza Granular Chlorine (25 lb), No Size, No Color

GLB
71222A
20.0 x 25.0 x 20.0 Inches
55.1156 Pounds

Ratings for GLB (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
The Factory Depot 5,311
Pool Geek 7,888

Features

GLB Granular Chlorine (25 lb)
Top 24

API OXSP6 Oxy Splash Non Chlorine Shock Water Treatment for Swimming Pools, Spas, and Hot Tubs to Eliminate Contaminants and Odors, 6 Pound Tub

API
OXSP6
0.0 x 0.0 x 0.0 Inches
6.0 Pounds

Ratings for API (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Doheny's Pool Supplies Fast 4,428

Features

Non-chlorinated pool and spa water treatment shock for balancing outdoor water feature's pH and chemical balance for safe and enjoyable swimming
Powerful shock treatment is 50 percent stronger than traditional chlorine shock and requires half the standard dose for more uses in 1 container
Show More

YaCaTaM Pool Chlorine Floater with Battery, 1 Floating Chlorine Dispenser with 1 LED Ball Light for Swimming Pool, Hot Tub, Spa, Party, Above Ground Pool, Chlorine Tablet Holder for 1 inch Tablets

YaCaTaM
YC-002
5.7 x 3.4 x 3.4 Inches

Ratings for YaCaTaM (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
Seyimart -

Features

Light Up at Night: our chlorine floater with waterproof LED ball light lights up all different colors for hot tubs, spas, swimming pools, above ground pools, parties, weddings, beaches, etc. And it comes with a hook, you can hang it on your patio, lawn, garden, backyard, or anywhere you like.
Beautiful Colors: the LED ball light of pool chlorine floater with color changing modes, short press the button and hold it for 3 seconds to turn on the light, then press it to switch 7 individual colors (Red, Green, Blue, White, Yellow, Aqua, Purple), 7 colors flashing, 7 colors smooth transition and 3 colors (Red, Green, Blue) flashing, the on/off button is under the ball, you can press it and change the color mode you want.
Show More
Top 26

In The Swim Super Pool Shock 24 x 1 Pound Bags

In The Swim
25334
13.6 x 11.0 x 10.5 Inches
0.0006 Pounds

Ratings for In The Swim (CPR Score)

Seller CPR Rank Amazon Fulfilled Prime Free Shipping
In The Swim Pool Supplies 324

Features

Whether you are an above ground or in-ground pool owner, In The Swim’s super shock sanitizer treatment is a powerful, fast-acting booster that is great for opening your swimming pool in the Spring season.
When confronted with stubborn algae, bacteria, and other harmful water contaminants that can cause illnesses, our In The Swim super shock treatment can rapidly restore your swimming pool back to an ultra-clear quality.
Show More

Top 10 Swimming Pool Chlorine Powder - Verified to Buy (Apr. 2024)

Top 10 Swimming Pool Chlorine Powder Brands on Amazon

Here is the list of top-rated brands that were evaluated by CherryPicks.

  • HTH
  • Rx Clear
  • Clorox
  • In The Swim
  • Leslie's
  • Pool Mate
  • CPDI
  • DryTec
  • Coral Seas
  • MAV AquaDoc

Related Swimming Pool Chlorine Powder Guides

For more personalized Swimming Pool Chlorine Powder guides, Check those pages,


Top 10 Swimming Pool Chlorine Powder Sellers: CPR Seller Rank List

CPR sellers rank is based on CherryPicks-AI bestselling ranking system that helps us analyze each seller's sales trends. The List of top seller ranks is our in-house data, essential for our product ranking to help you make the right shopping choice.

Rank Name Yearly Feedbacks Avg. Ratings
🥇 In The Swim Pool Supplies 6,647 4.6
🥈 Angel Seller 2,084 4.8
🥉 Pool Supplies Superstore 2,078 4.7
4 Save More On Pool Supplies 1,985 4.6
5 Pool Supply Warehouse 1,754 4.6
6 Doheny's Pool Supplies Fast 1,138 4.8
7 The Factory Depot 991 4.7
8 Supernova Co. 847 4.9
9 LeisureQuip, Inc. (HotTubClub) 770 4.8
10 Home and Country USA 757 4.7
View or download top Swimming Pool Chlorine Powder seller & rating report
In The Swim Pool Supplies [6647] Angel Seller [2084] Pool Supplies Superstore [2078] Save More On Pool Supplies [1985] Pool Supply Warehouse [1754] Doheny's Pool Supplies Fast [1138] The Factory Depot [991] Supernova Co. [847] LeisureQuip, Inc. (HotTubClub) [770] Home and Country USA [757] In The Swim Pool Supplies 35% Angel Seller 11% Pool Supplies Superstore 11% Save More On Pool Supplies 10% Pool Supply Warehouse 9% Doheny's Pool Supplies Fast 6% The Factory Depot 5% Supernova Co. 4% LeisureQuip, Inc. (HotTubClub) 4% Home and Country USA 4%

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When you order a product that is "Amazon Fulfilled," Amazon takes care of the storage, packing, shipping, and customer service for that product. This often ensures quicker delivery and better customer service compared to products that are not fulfilled by Amazon. It also means that the product is eligible for Amazon's return policy.

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"Free Shipping" means that you will not be charged additional fees for the shipping of that product. However, unlike "Prime," which usually guarantees fast two-day shipping, "Free Shipping" doesn't necessarily mean fast shipping.

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Why Should You Trust Us?

Now hundreds and thousands of Pools, Hot Tubs & Supplies supplies are available on Amazon, Picking the right one is not easy, and that may take a lot of your time, Right? and What is the best Swimming Pool Chlorine Powder to buy for new April 2024?

CherryPicks’s Methodology for Evaluating Swimming Pool Chlorine Powder

We developed the CherryRatings-AI system to identify and score reviews and the CherryPicks-AI ranking system that uses TensorFlow framework to generate the best list, It will help us evaluate Pools, Hot Tubs & Supplies items that sell on Amazon. The score of items is based on over ten parameters such as analyzing customer review content, product reviewing rating statistics, brand reputation evaluation, comparing product price with features, etc, You can visit How We Rank to learn more in detail.

We collected and analyzed 233 of Swimming Pool Chlorine Powder reviews based on our selection criteria. It helped us shortlist the top qualified and rated Swimming Pool Chlorine Powder for Pools, Hot Tubs & Supplies, We found that most customers choose Swimming Pool Chlorine Powder with an average price of $78.54, and the top brands are Clorox, API, In The Swim, HTH, Rx Clear, Cesco Solutions, Inc., Doheny's, zengxiaoyun, YUMITIS, YaCaTaM, Coral Seas, DryTec, Pool Mate, MAV AquaDoc, Adevit, CPDI, GLB And Leslie's. 

Then our expert-level editors reviewed all those quality items and selected the top 26 Swimming Pool Chlorine Powder for you, We have researched hundreds of sellers and picked the top sellers for Pools, Hot Tubs & Supplies, including In The Swim Pool Supplies, Angel Seller, Pool Supplies Superstore, Save More On Pool Supplies, Pool Supply Warehouse, Doheny's Pool Supplies Fast, The Factory Depot, Supernova Co., LeisureQuip, Inc. (HotTubClub), Home and Country USA, Pool Geek And bookshop2. The HTH 22017 Swimming Pool Care Chlorine Granules ... are available for purchase right now, and The seller of #1 rank product has received honest feedback from 43 consumers with an average rating of 4.5.

We've helped a lot of satisfied users get the right Patio, Lawn & Garden product based on their needs, and save lots of time for them to pick Swimming Pool Chlorine Powder to buy.


Written By Ben Broadby

Ben Broadby runs a local garden clearing service and has got over 7 years of experience doing this and putting a smile on the faces of  garden owners in his locality. He wants to share all he has learned with us over the years