Best Us Pool Supply Chlorine in 2026

Fast acting

Add as needed to maintain 3-5ppm

Acts as a sanitizer and an oxidizer; no need for two products

Kills bacteria

Kills and prevents all types of pool algae

Prevents corrosion, scale and stains

Granular stabilized chlorinator

Acts as a sanitizer and an oxidizer; no need for two products

Fast acting

Helps chlorine last longer

Reduces sun's impact on chlorine

Perfect for salt pools, new pools and pools that use liquid chlorine

BENEFITS: Destroys organic contaminants to maintain clean, clear, sanitized water; helps control algae growth

USE: Specifically formulated for spa and hot tubs; can be used as a shock treatment

COMPATIBILITY: Chlorine sanitizing systems

Specifically formulated for spa and hot tubs

Maintains clean, clear sanitized water

Easy to use

24 bags (1-pound each)

Fast-Acting Quick-Dissolving Swimming Pool Sanitizer

Kills bacteria, controls algae, and destroys organic contaminants in pools

Dissolves Quickly and Completely

Stabilized Spa Chlorine

56% Available Chlorine

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.

DISSOLVES QUICKLY - Add 1 oz of this cleaning chemical to your pool for every 5,000 gallons your pool contains, daily for the best quick water treatment maintenance.

Everything you need in 1 individually wrapped tablet

Prevents algae and kills bacteria

Use in skimmer, feeder or floater

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

BENEFIT: Protect your swimming pool and enjoy clean, clear water with these easy-to-use chlorine-based tabs; Kills algae and bacteria

CLEAN, CLEAR WATER: HTH Chlorine Tabs keep water clear while protecting against bacteria, algae and other organisms

SLOW DISSOLVING, LONG LASTING: Sun protected for longer chlorine life, HTH Chlorine Tabs dissolve slowly and last up to one week

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

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

Calcium-Free formula keeps hard-water pools sparkling clean and crystal clear

Stabilized to protect against harmful UV rays

Improves the chlorine residual in your pool

Individually wrapped for easy and safe handling

Dual Action Sanitizer and Shock

Kills Bacteria

Kills and prevents all types of pool algae

SpaGuard Chlorine Concentrate (14 oz)

Granular Stabilized Chlorine

Fast Acting

Powerful, super-concentrated, residue-free, and fast-dissolving

Customers prefer chlorinating granules because it has little to no effect on pH levels

Can be used as a routine chlorine sanitizer or as a shock treatment

Sanitizer, Clarifier, Stain Inhibitor, Algae Control, and Descale all in one 3" 8 oz. tab

Each 3" 8 oz. tab is individually wrapped, stabilized, and slow dissolving

Reduces the need for additional chemicals

BENEFIT: Sanitizer, clarifier, and algaecide to protect your swimming pool and swimmers with one easy, convenient, and individually wrapped 3-inch tablet

CLEAR BLUE WATER: This advanced formula sanitizes, clarifies, and kills algae for beautiful, clean, and clear water all season

SLOW DISSOLVING, LONG LASTING: Sun protected for longer chlorine life, HTH 3” Individually Wrapped Chlorine Tabs Advanced dissolve slowly and last up to one week

Controls Algae

Prevents corrosion and scale

Removes organic contaminants for clear water

Keeping your swimming pool water clean and sanitary is one of the most important steps for pool maintenance. Let In The Swim’s 3 inch chlorine tablets for pools help. With a powerful active ingredient and slow dissolving formula, our chlorine tablets will keep your swimming pool water sanitary longer, saving you time and money.

Chlorine tablets contain 99% Trichloro-S-Triazinetrione (Trichlor) and 90% available chlorine, making it one of the strongest products on the market. Each 3 inch chlorine tablet is sun-stabilized which increases longevity in outdoor swimming pools.

Pool chlorine tablets help you avoid inconsistent chlorination, which is a common occurrence when using granular or liquid chlorine to sanitize a pool. Keeping your pH and alkalinity levels balanced helps with the effectiveness of pool chlorine in the water.

Multi-functional pool shock with algae-fighting crystals

Creates crystal clear water

Kills and prevents green, black and mustard pool algae