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Pools, Hot Tubs & Supplies

Pool Chemicals

10 Best Pool Chemicals 2025 in the United States

Name: In The Swim 3 Inch Stabilized Chlorine Tablets for Sanitizing Swimming Pools - Individually Wrapped, Slow Dissolving - 90% Available Chlorine - Tri-Chlor - 50 Pounds
Brand: In The Swim
Price: 194.99 USD
Availability: InStock

From leading brands and best sellers available on the web.

Hot Tub, Pool & Spa Defoamer (1 Gallon / 128oz) – Quickly Removes Foam Without The Use of Harsh Hot Tub Chemicals, Eco-Friendly & Safe with Silicone Emulsion Formula. Get The Foam Down

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Winner

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

9.8

score

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Hot Tub, Pool & Spa Defoamer (1 Gallon / 128oz) – Quickly Removes Foam Without The Use of Harsh Hot Tub Chemicals, Eco-Friendly & Safe with Silicone Emulsion Formula. Get The Foam Down

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HTH

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

9.6

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- 24 X 1 Pound

9.4

score

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CLOROX POOL & Spa

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

9.1

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, (6-Pack)

8.8

score

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CLOROX POOL & Spa

CLOROX Pool&Spa XtraBlue 3” Chlorinating Tablets, Kills Bacteria & Stops Algae, 5 LB

8.6

score

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CLOROX POOL & Spa

Clorox® Pool&Spa™ Spa Water All-in-One Sanitizer & Shock, Destroys Contaminants, Clears Cloudy Water, 2LB (Pack of 1)

8.3

score

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HTH

HTH 42052W Pool Care 3" Chlorine Tabs Advanced, Individually Wrapped Tablets - Swimming Pool Sanitizer with Clarifier & Algaecide, Destroys Bacteria & Algae, Delivers Clear Water All Season, 5 lbs

8.0

score

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CLOROX POOL & Spa

Clorox® Pool&Spa™ Swimming Pool Algaecide and Clarifier, Prevents and Treats Pool Algae, Clears Water, 128 Fl Oz (Pack of 1)

7.7

score

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#10

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

7.5

score

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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 Shark Floating Pool Chlorine Dispenser, Collapsible Base, Holds 3" Tablets - 11" Fun, Scary Teeth Great White Animal Float Floater Decoration, Adjustable Balanced Delivery

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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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10 Best Pool Chemicals 2025 in the United States

Hot Tub, Pool & Spa Defoamer (1 Gallon / 128oz) – Quickly Removes Foam Without The Use of Harsh Hot Tub Chemicals, Eco-Friendly & Safe with Silicone Emulsion Formula. Get The Foam Down

In The Swim 3 Inch Stabilized Chlorine Tablets for Sanitizing Swimming Pools - Individually Wrapped, Slow Dissolving - 90% Available Chlorine - Tri-Chlor - 50 Pounds

Hot Tub, Pool & Spa Defoamer (1 Gallon / 128oz) – Quickly Removes Foam Without The Use of Harsh Hot Tub Chemicals, Eco-Friendly & Safe with Silicone Emulsion Formula. Get The Foam Down

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

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

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

Clorox® Pool&Spa™ Shock XTRABLUE®2, Kills Bacteria & Algae in Swimming Pools, Swim-Ready in 15 Minutes, (6-Pack)

CLOROX Pool&Spa XtraBlue 3” Chlorinating Tablets, Kills Bacteria & Stops Algae, 5 LB

Clorox® Pool&Spa™ Spa Water All-in-One Sanitizer & Shock, Destroys Contaminants, Clears Cloudy Water, 2LB (Pack of 1)

HTH 42052W Pool Care 3" Chlorine Tabs Advanced, Individually Wrapped Tablets - Swimming Pool Sanitizer with Clarifier & Algaecide, Destroys Bacteria & Algae, Delivers Clear Water All Season, 5 lbs

Clorox® Pool&Spa™ Swimming Pool Algaecide and Clarifier, Prevents and Treats Pool Algae, Clears Water, 128 Fl Oz (Pack of 1)

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

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 Shark Floating Pool Chlorine Dispenser, Collapsible Base, Holds 3" Tablets - 11" Fun, Scary Teeth Great White Animal Float Floater Decoration, Adjustable Balanced Delivery

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

FAQ

What chemicals do I need to maintain my pool?

How often should I shock my pool?

Is it safe to swim in a pool after adding chemicals?

How do I get rid of algae in my pool?

Why is my pool water cloudy after adding chemicals?

10 Best Pool Chemicals 2025 in the United States

Hot Tub, Pool & Spa Defoamer (1 Gallon / 128oz) – Quickly Removes Foam Without The Use of Harsh Hot Tub Chemicals, Eco-Friendly & Safe with Silicone Emulsion Formula. Get The Foam Down

In The Swim 3 Inch Stabilized Chlorine Tablets for Sanitizing Swimming Pools - Individually Wrapped, Slow Dissolving - 90% Available Chlorine - Tri-Chlor - 50 Pounds

Hot Tub, Pool & Spa Defoamer (1 Gallon / 128oz) – Quickly Removes Foam Without The Use of Harsh Hot Tub Chemicals, Eco-Friendly & Safe with Silicone Emulsion Formula. Get The Foam Down

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

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

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

Clorox® Pool&Spa™ Shock XTRABLUE®2, Kills Bacteria & Algae in Swimming Pools, Swim-Ready in 15 Minutes, (6-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

Hydrogen Peroxide for Pools, 4 Gallons

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

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

CLOROX Pool&Spa XtraBlue 3” Chlorinating Tablets, Kills Bacteria & Stops Algae, 5 LB

Clorox® Pool&Spa™ Spa Water All-in-One Sanitizer & Shock, Destroys Contaminants, Clears Cloudy Water, 2LB (Pack of 1)

HTH 42052W Pool Care 3" Chlorine Tabs Advanced, Individually Wrapped Tablets - Swimming Pool Sanitizer with Clarifier & Algaecide, Destroys Bacteria & Algae, Delivers Clear Water All Season, 5 lbs

Clorox® Pool&Spa™ Swimming Pool Algaecide and Clarifier, Prevents and Treats Pool Algae, Clears Water, 128 Fl Oz (Pack of 1)

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

Ez Pool Chemicals

Pool Closing Chemicals

Winterizing Pool Chemicals

Chemical Peels

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 Shark Floating Pool Chlorine Dispenser, Collapsible Base, Holds 3" Tablets - 11" Fun, Scary Teeth Great White Animal Float Floater Decoration, Adjustable Balanced Delivery

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

FAQ

What chemicals do I need to maintain my pool?

How often should I shock my pool?

Is it safe to swim in a pool after adding chemicals?

How do I get rid of algae in my pool?

Why is my pool water cloudy after adding chemicals?