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Pools, Hot Tubs & Supplies

Pool Chlorine Granules

10 Best Pool Chlorine Granules 2025 in the United States

From leading brands and best sellers available on the web.

Winner

HTH

HTH 52037 Swimming Pool Care Shock Advanced, Swimming Pool Chemical, Cal Hypo Formula (12 Pack)

9.9

score

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CLOROX POOL & Spa

Clorox® Pool&Spa™ Shock XTRABLUE®2, Kills Bacteria & Algae in Swimming Pools, Swim-Ready in 15 Minutes, (12-Pack)

9.8

score

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In The Swim

In The Swim Pool Shock – 68% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends Against Bacteria, Algae, and Microorganisms - 25 Pounds

9.6

score

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CLOROX POOL & Spa

Clorox® Pool&Spa™ Shock Plus, for Crystal Clear Swimming Pool Water, Swim-ready in 15 minutes, Suitable for vinyl pools 12 Count (Pack of 1)

9.4

score

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DryTec

DryTec 1-1901-24 Calcium Hypochlorite Pool Shock, 1-Pound, 24-Pack

9.2

score

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AQUA-ORG PLUS

Pool Shock by Aqua Org Plus - 65% Granular Cal Hypo - Swimming Pool Shock for In-Ground, Above Ground, Spas & Hot Tubs - 55 Pound Pail

9.0

score

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CLOROX POOL & Spa

CLOROX Pool&Spa All-in-One XtraBlue Chlorinating Granules, Kills Bacteria & Stops Algae, Blue, 6 Pounds

8.7

score

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Rx Clear

Rx Clear Stabilized Granular Chlorine | One 25-Pound Bucket | Use As Bactericide, Algaecide, and Disinfectant in Swimming Pools and Spas | Fast Dissolving and UV Protected

8.4

score

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Doheny's

Doheny's Di-Chlor Granular Chlorine | Pro-Grade 3-in-1 Pool Chlorine Granules Sanitizer, Shock and A

8.1

score

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#10

In The Swim

In The Swim Sodium Dichlor Chlorine Shock Granules for Sanitizing Swimming Pools – Fast Dissolving, pH Balanced Sanitizer - 56% Available Chlorine, 99% Sodium-Dichlor – 2 Pound

7.8

score

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More products we considered

U.S. Pool Supply Floating Pool Chlorine and Bromine Chemical Dispenser with Pop-Up Refill Indicator - Holds 3" and 4" Tablets, 8" Diameter - Adjustable Balanced Chemical Delivery Clorinator Floater

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U.S. Pool Supply Pool Chlorine Floater Dispenser with Thermometer - 8" Diameter Floating Chlorinator, Large Capacity Holds 3" Tablets - Adjustable Ring for Balanced Delivery Multi

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U.S. Pool Supply Open Jaws Great White Shark Floating Pool Chlorine Dispenser, Collapsible Base, Holds 3" Tablets - Scary Teeth, Fun Animal Float Floater Decoration, Adjustable Balanced Delivery, Spa

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U.S. Pool Supply Pool & Spa Floating Chlorine & Bromine 1" Tablet Chemical Dispenser, 5" Diameter, Collapsible Floater

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U.S. Pool Supply Pool Chlorine Floater Dispenser with Pop-Up Refill Indicator - Holds 3" Tablets, 7" Diameter, Large Durable Floating Chlorinator, Adjustable Flow for Balanced Chemical Delivery

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10 Best Pool Chlorine Granules 2025 in the United States

HTH 52037 Swimming Pool Care Shock Advanced, Swimming Pool Chemical, Cal Hypo Formula (12 Pack)

Clorox® Pool&Spa™ Shock XTRABLUE®2, Kills Bacteria & Algae in Swimming Pools, Swim-Ready in 15 Minutes, (12-Pack)

In The Swim Pool Shock – 68% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends Against Bacteria, Algae, and Microorganisms - 25 Pounds

Clorox® Pool&Spa™ Shock Plus, for Crystal Clear Swimming Pool Water, Swim-ready in 15 minutes, Suitable for vinyl pools 12 Count (Pack of 1)

DryTec 1-1901-24 Calcium Hypochlorite Pool Shock, 1-Pound, 24-Pack

Pool Shock by Aqua Org Plus - 65% Granular Cal Hypo - Swimming Pool Shock for In-Ground, Above Ground, Spas & Hot Tubs - 55 Pound Pail

CLOROX Pool&Spa All-in-One XtraBlue Chlorinating Granules, Kills Bacteria & Stops Algae, Blue, 6 Pounds

Rx Clear Stabilized Granular Chlorine | One 25-Pound Bucket | Use As Bactericide, Algaecide, and Disinfectant in Swimming Pools and Spas | Fast Dissolving and UV Protected

Doheny's Di-Chlor Granular Chlorine | Pro-Grade 3-in-1 Pool Chlorine Granules Sanitizer, Shock and A

In The Swim Sodium Dichlor Chlorine Shock Granules for Sanitizing Swimming Pools – Fast Dissolving, pH Balanced Sanitizer - 56% Available Chlorine, 99% Sodium-Dichlor – 2 Pound

U.S. Pool Supply Floating Pool Chlorine and Bromine Chemical Dispenser with Pop-Up Refill Indicator - Holds 3" and 4" Tablets, 8" Diameter - Adjustable Balanced Chemical Delivery Clorinator Floater

U.S. Pool Supply Pool Chlorine Floater Dispenser with Thermometer - 8" Diameter Floating Chlorinator, Large Capacity Holds 3" Tablets - Adjustable Ring for Balanced Delivery Multi

U.S. Pool Supply Open Jaws Great White Shark Floating Pool Chlorine Dispenser, Collapsible Base, Holds 3" Tablets - Scary Teeth, Fun Animal Float Floater Decoration, Adjustable Balanced Delivery, Spa

U.S. Pool Supply Pool & Spa Floating Chlorine & Bromine 1" Tablet Chemical Dispenser, 5" Diameter, Collapsible Floater

U.S. Pool Supply Pool Chlorine Floater Dispenser with Pop-Up Refill Indicator - Holds 3" Tablets, 7" Diameter, Large Durable Floating Chlorinator, Adjustable Flow for Balanced Chemical Delivery

FAQ

What are the benefits of using chlorine granules for pool maintenance?

How much chlorine granules should I use for my pool?

Are chlorine granules safe to use in all types of pools?

How should I store chlorine granules to ensure their effectiveness?

What is the difference between chlorine granules and chlorine tablets?

10 Best Pool Chlorine Granules 2025 in the United States

HTH 52037 Swimming Pool Care Shock Advanced, Swimming Pool Chemical, Cal Hypo Formula (12 Pack)

Clorox® Pool&Spa™ Shock XTRABLUE®2, Kills Bacteria & Algae in Swimming Pools, Swim-Ready in 15 Minutes, (12-Pack)

In The Swim Pool Shock – 68% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends Against Bacteria, Algae, and Microorganisms - 25 Pounds

Clorox® Pool&Spa™ Shock Plus, for Crystal Clear Swimming Pool Water, Swim-ready in 15 minutes, Suitable for vinyl pools 12 Count (Pack of 1)

DryTec 1-1901-24 Calcium Hypochlorite Pool Shock, 1-Pound, 24-Pack

U.S. Pool Supply Deluxe Pool Chlorine Floater Dispenser - 3" Tablets, 7" Diameter - Inground & Above Ground Swimming Pools - Large Floating Chlorinator, Adjustable Flow for Balanced Chemical Delivery

U.S. Pool Supply Professional in-Line Pool Automatic Chlorine Feeder, CL-220-9 lb Chemical Capacity, Compatible with Hayward Off-Line Chlorinator - Above Ground Swimming Pools, Easy Installation

U.S. Pool Supply Solar Pool Ionizer Cleaner - Chlorine-Free Sun Shock for Crystal-Clear Safe Swimming Pool Water - Long Lasting Copper Anode, Eco-Friendly Solar Powered, Fresh & Salt Water

Blue Mano Unicorn Floating Chlorine Dispenser for 3 inch Chlorine Tablets with Refill Warning, Durable Design, Unicorn Floater & Dispenser for Inground and Above Ground Swimming Pool

U.S. Pool Supply Pool & Spa Floating Chlorine & Bromine 3" Tablet View Circle Chemical Dispenser 10" Diameter - Floats Upright When Full and Flat When Needs Refill - Adjustable Dispensing Settings

Pool Shock by Aqua Org Plus - 65% Granular Cal Hypo - Swimming Pool Shock for In-Ground, Above Ground, Spas & Hot Tubs - 55 Pound Pail

CLOROX Pool&Spa All-in-One XtraBlue Chlorinating Granules, Kills Bacteria & Stops Algae, Blue, 6 Pounds

Rx Clear Stabilized Granular Chlorine | One 25-Pound Bucket | Use As Bactericide, Algaecide, and Disinfectant in Swimming Pools and Spas | Fast Dissolving and UV Protected

Doheny's Di-Chlor Granular Chlorine | Pro-Grade 3-in-1 Pool Chlorine Granules Sanitizer, Shock and A

In The Swim Sodium Dichlor Chlorine Shock Granules for Sanitizing Swimming Pools – Fast Dissolving, pH Balanced Sanitizer - 56% Available Chlorine, 99% Sodium-Dichlor – 2 Pound

Chlorine Granules

Chlorine Pool Shocks

chlorine pool cleaner

Hth Pool Chlorines

U.S. Pool Supply Floating Pool Chlorine and Bromine Chemical Dispenser with Pop-Up Refill Indicator - Holds 3" and 4" Tablets, 8" Diameter - Adjustable Balanced Chemical Delivery Clorinator Floater

U.S. Pool Supply Pool Chlorine Floater Dispenser with Thermometer - 8" Diameter Floating Chlorinator, Large Capacity Holds 3" Tablets - Adjustable Ring for Balanced Delivery Multi

U.S. Pool Supply Open Jaws Great White Shark Floating Pool Chlorine Dispenser, Collapsible Base, Holds 3" Tablets - Scary Teeth, Fun Animal Float Floater Decoration, Adjustable Balanced Delivery, Spa

U.S. Pool Supply Pool & Spa Floating Chlorine & Bromine 1" Tablet Chemical Dispenser, 5" Diameter, Collapsible Floater

U.S. Pool Supply Pool Chlorine Floater Dispenser with Pop-Up Refill Indicator - Holds 3" Tablets, 7" Diameter, Large Durable Floating Chlorinator, Adjustable Flow for Balanced Chemical Delivery

FAQ

What are the benefits of using chlorine granules for pool maintenance?

How much chlorine granules should I use for my pool?

Are chlorine granules safe to use in all types of pools?

How should I store chlorine granules to ensure their effectiveness?

What is the difference between chlorine granules and chlorine tablets?