10 Best chlorine in Canada

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Last Updated - 2025/09/18

Best Choice

01
Pool Supplies Canada

Chlorine Pucks for Pool (6 Kg) - King Size 3” Stabilized Swimming Pool Chlorine Pucks | UV Protected Pool Sanitizer | Slow Dissolving, Long-Lasting Protection (Pack of 2)
Main highlights

🇨🇦 MADE IN CANADA: Pool Supplies Canada is a Canadian company and all our products are proudly MADE IN CANADA! Trust a Canadian brand created for Canadian families 🇨🇦
VERSATILE USE FOR All POOLS: Whether you have a large inground pool or above ground pool, this chlorine pucks for pool works seamlessly with floating dispensers, skimmers, or automatic feeders, offering a hassle-free maintenance experience
STABILIZED FOR SUN PROTECTION: Unlike standard chlorine tablets, Pool Supplies Canada pucks are UV stabilized, preventing rapid chlorine loss in sunlight. This saves you money by reducing the need for frequent applications and ensures effective chlorine levels for longer
LONG-LASTING WATER PROTECTION: Keep your pool clean with slow-dissolving, chlorine pucks that provide continuous sanitization. Each 3-inch, 200g puck ensures long-term water purity, preventing bacteria, algae, and cloudy water for crystal-clear results
HIGHLY CONCENTRATED FORMULA: Our premium 100% Trichloro pool chlorine pucks are formulated for maximum sanitization, reducing the need for constant reapplications. Get stronger disinfection per puck, ensuring your pool remains safe and swim-ready with minimal effort
BULK 12KG SUPPLY – COST-EFFECTIVE & RELIABLE: 6kg bucket. Get the best value for your money with extra large 12kg size of premium pool pucks. Designed for consistent, worry-free protection, our bulk pack reduces the hassle of frequent store trips, keeping your pool fresh and inviting
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9.7

Exceptional

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02
SpaGuard

SpaGuard Stabilized Chlorinating Granules (2 KG) Chlorine Sanitizer (SKU 7506)

9.7 worth the money

9.3 Simple to use
Main highlights

Superchlorinate a freshly filled spa by adding 20g of Stabilized Chlorinating Granules per 1,000L of spa water. Maintain circulation at least 30 minutes and wait 4 hours before using.
Stabilized Chlorinating Granules contains stabilizer (cyanuric acid) which will accumulate in spa water. Keep stabilizer within 30-100ppm range by dilution with fresh water.
Maintain recommended daily levels as determined by testing kit of 3.00-5.00ppm.
For proper sanitation spas must be completely drained periodically.
A practical, easy to use sanitizer for spa and hot tub water. It rapidly and completely dissolves to provide effective chlorine sanitation without cloudy or insoluble residue in the water.
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9.6

Exceptional

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03
Pool Supplies Canada

Chlorine Pucks for Pool (6 Kg) - King Size 3” Stabilized Swimming Pool Chlorine Pucks | UV Protected Pool Sanitizer | Slow Dissolving, Long-Lasting Protection for Crystal Clear Pool | 100% Trichloro

9.9 Easy installation

9.7 Simple to use

9.5 lasts a long time
Main highlights

🇨🇦 MADE IN CANADA: Pool Supplies Canada is a Canadian company and all our products are proudly MADE IN CANADA! Trust a Canadian brand created for Canadian families 🇨🇦
VERSATILE USE FOR All POOLS: Whether you have a large inground pool or above ground pool, this chlorine pucks for pool works seamlessly with floating dispensers, skimmers, or automatic feeders, offering a hassle-free maintenance experience
UV STABILIZED FOR SUN PROTECTION: Unlike standard chlorine tablets, Pool Supplies Canada pucks are UV stabilized, preventing rapid chlorine loss in sunlight. This saves you money by reducing the need for frequent applications and ensures effective chlorine levels for longer
HIGHLY CONCENTRATED FORMULA: Our premium 100% Trichloro + 90% available king size pucks are formulated for maximum sanitization, reducing the need for constant reapplications. Get stronger disinfection per puck, ensuring your pool remains safe and swim-ready with minimal effort
BULK 6 KG SUPPLY – COST-EFFECTIVE & RELIABLE: 2 x 6kg bucket. Get the best value for your money with our extra large 6 kg size of premium pool pucks. Designed for consistent, worry-free protection, our bulk pack reduces the hassle of frequent store trips, keeping your pool fresh and inviting
LONG-LASTING CHLORINATION FOR A SPARKLING POOL: Keep your pool crystal clear with slow-dissolving, chlorine pucks that provide continuous sanitization. Each 3-inch, 200g puck ensures long-term water purity, preventing bacteria, algae, and cloudy water for a beautiful, crystal clear pool. 100% Trichloro + 90% Available Chlorine Content
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9.5

Excellent

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04
Aqua Coastal

Chlorine Mini Pucks for Spa & Hot Tubs (1kg/2.2lbs) by Aquashield

9.7 Simple to use

9.1 lasts a long time

8.7 worth the money
Main highlights

The slowest-dissolving, longest lasting chlorine you can buy.
Powerful 90% available stabilized chlorine.
Perfect for floating feeders or almost any automatic chlorinator.
15-gram trichlor tablets
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9.4

Excellent

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Value for Money

05
Aqua Coastal

Stabilized Chlorinating Granules for Pools and Spas (2kg / 4.4lbs)
Main highlights

Stabilized for Sun Protection: Built-in stabilizer helps prevent chlorine loss from UV rays, so you get longer-lasting sanitizing power even on the sunniest days
Powerful Sanitizing Formula: Granular Stabilized Chlorine keeps your water crystal clear by eliminating bacteria, algae, and organic contaminants quickly and effectively with regukar maintenance
Fast-Dissolving Granules: Designed to dissolve quickly and evenly in water, this chlorine can be added directly to spa (no pre-dissolving needed), won’t leave residue or cause cloudiness, making maintenance easy and efficient
Acts as a sanitizer and an oxidizer (no need for two products)
Active ingredient is Sodium Dichloro-s-Triazinetrione Dihydrate
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9.2

Excellent

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06
Aqua Coastal

Chlorine Mini Pucks for Spa & Hot Tubs (2 KG) by Aquashield

9.9 Precision

9.7 Simple to use

9.3 lasts a long time
Main highlights

Versatile Use: Perfect for use in floaters, feeders, or automatic chlorinators in both pools and spas
High-Strength Formula: Contains 90% stabilized chlorine for long-lasting, consistent sanitation
Bacteria & Algae Control: Effectively kills harmful bacteria and helps prevent algae growth for cleaner, healthier water
15g Chlorine Tablets: Compact and powerful, designed to sanitize pools and spas with ease
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8.9

Very Good

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07
Aqua Coastal

Premium Pool Shock Chlorinating Granules (65% Available Chlorine) (2kg / 4.4lbs)

9.9 Simple to use

8.9 worth the money
Main highlights

Works in all swimming pool types including vinyl liner pools, Gunite pools, and saltwater pools
Use chlorine granules in swimming pool to increase chlorine and kill bacteria and algae
Premium chlorine shock treatment that is great for regular maintenance
Main active ingredient is 65% Calcium Hypochlorite (Cal-Hypo) for quick sanitizing
Add chlorine shock to water on a weekly basis or as needed
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8.8

Very Good

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08
BioGuard

SpaGuard Chlorinating Concentrate (14 oz)
Main highlights

SpaGuard Chlorine Concentrate (14 oz)
Quick Dissolving
No Pre-dissolving Needed
Granular Stabilized Chlorine
Fast Acting
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8.5

Good

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09
Pool Supplies Canada

Chlorine Pucks for Hot Tub & Spa - 800g Stabilized Chlorine Tablets for Crystal Clear Water - Long Lasting & Slow-Dissolving Hot Tub Chlorine Pucks - Prevents Bacteria & Algae (Single Pack)

9.9 Simple to use

9.7 lasts a long time

9.3 Precision
Main highlights

🇨🇦 MADE IN CANADA: Pool Supplies Canada is a Canadian company and all our hot tub chemicals are proudly MADE IN CANADA! Trust a Canadian brand created for Canadian families 🇨🇦
ULTRA-PURE CHLORINE FORMULA: Keep your hot tub and spa water crystal clear with our high-quality hot tub chlorine pucks. Designed for superior bacteria and algae control, these slow-dissolving tablets ensure continuous sanitation, so you can relax without worrying about water hygiene. Perfect for hot tubs and spas that need long-lasting, hassle-free protection. Pool Supplies Canada is Canada's #1 leader in hot tub chemicals
SLOW-DISSOLVING FOR MAXIMUM EFFICIENCY: Unlike fast-burning chlorine pucks for hot tub, our slow-dissolving formula ensures an even and steady release of sanitization. This means less maintenance, fewer tablet replacements, and consistently balanced water—so you spend more time enjoying your spa and less time adjusting chemicals
PREMIUM QUALITY FOR CLEANER, HEALTHIER WATER: Made from high-grade chlorine, our 800g pack of chlorine pucks ensures a strong and reliable sanitizing solution for weeks. Safe, effective, and designed to maximize water clarity, these tablets help reduce skin irritation and keep your hot tub feeling refreshing and rejuvenating every time you step in
POWERFUL BACTERIA & ALGAE CONTROL: Say goodbye to cloudy, slimy, or green water. Pool Supplies Canada chlorine tablets work around the clock to eliminate bacteria, prevent algae growth, and maintain a fresh, clean, and inviting spa environment. Ideal for regular use to keep your water safe, clear, and sparkling
EASY-TO-USE & VERSATILE: Designed for any sized hot tubs and spas, these mini chlorine pucks are compatible with floaters, feeders, and skimmers for effortless application. Simply drop one in, and let it do the work! They provide consistent protection without constant monitoring
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8.4

Good

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10
Aqua Coastal

AquaShield 3” Stabilized Chlorine Pool Pucks (6KG) – Professional Grade – Long-Lasting, Slow-Dissolving Tablets – UV Protected 100% Trichloro

9.7 lasts a long time

9.7 Simple to use

9.1 worth the money
Main highlights

Versatile Use in Dispensers & Skimmers: Compatible with all standard floaters, feeders, and skimmers, making it easy to integrate into your existing pool system
UV Protected Formula: Stabilized with cyanuric acid to protect chlorine from sunlight degradation — ideal for outdoor pools exposed to direct sun
Professional Grade Sanitization: 3” stabilized chlorine pucks deliver consistent, reliable sanitizing power for crystal-clear water in both above-ground and inground pools
Long-Lasting & Slow Dissolving: Each puck is formulated to dissolve slowly over time, reducing the need for frequent maintenance and offering extended protection against bacteria and algae
Individually Wrapped for Safety & Convenience: Every puck is individually sealed to prevent mess, reduce strong odors, and make storage and application cleaner and more convenient
6kg Resealable Bucket: Convenient and secure storage with a durable, easy-carry pail that holds enough chlorine to last through the summer season for most residential pools
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8.3

Good

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