Best Pool Chlorine Granules In April 2025

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To help you choose the Best Pool Chlorine Granules, we’ve put together this comprehensive guide. We have tried to cover as much variety as possible. Hope you will find it helpful!

To help you in your search, we have completed this list of the Best Pool Chlorine Granules.

Top Rated Best Pool Chlorine Granules Of 2025

Rank	Product Name	Score
1	Clorox Pool&Spa Shock XtraBlue 1 lb Buy Now	9.7 Buy Now
2	SpaChoice 472-3-5081 Chlorine Granules for Spas and Hot Tubs, 5-Pounds Buy Now	9.5 Buy Now
3	Leisure Time 22337A Spa 56 Chlorinating Granules for Hot Tubs, 2 lbs Buy Now	9.1 Buy Now
4	Clorox Pool&Spa XtraBlue Chlorinating Granules 22.5 lb Buy Now	8.8 Buy Now
5	Spa Essentials 32130000 Chlorinating Concentrate Granules for Spas and Hot Tubs, 2-Pound Buy Now	8.6 Buy Now
6	Spa Essentials 32131000 Chlorinating Concentrate Granules for Spas and Hot Tubs, 5-Pound Buy Now	8.3 Buy Now
7	SpaGuard Chlorinating Concentrate - 2 lbs Buy Now	8.1 Buy Now
8	Clorox Pool&Spa XtraBlue 3" Long Lasting Chlorinating Tablets 25 lb Buy Now	7.8 Buy Now
9	DryTec Calcium Hypochlorite Chlorinating Shock Treatment for Swimming Pools, 1-Pound (Pack of 24) Buy Now	7.5 Buy Now
10	SpaChoice 472-3-3031 Chlorine Granules for Spas and Hot Tubs, 2-Pounds Buy Now	7.2 Buy Now

1. Clorox Pool&Spa Shock XtraBlue 1 lb

• Creates crystal clear water
• Easy open, easy pour bottles
• Won't impact ph
• Improves filter performance
• Multi-functional pool shock with algae-fighting crystals
• Kills and prevents green, black and mustard algae

2. SpaChoice 472-3-5081 Chlorine Granules for Spas and Hot Tubs, 5-Pounds

• Controls algae
• Kills bacteria
• Dissolves quickly and completely
• Downloadable user guide available under product information: technical specifications
• Stabilized spa chlorine
• 56% available chlorine

3. Leisure Time 22337A Spa 56 Chlorinating Granules for Hot Tubs, 2 lbs

• Benefits: destroys organic contaminants to maintain clean, clear, sanitized water, helps control algae growth
• Features: quick dissolving, epa approved chemical formula
• Compatibility: chlorine sanitizing systems
• Active ingredients: sodium dichloro-s-triazinetrione dihydrate
• Use: specifically formulated for spa and hot tubs, can be used as a shock treatment

4. Clorox Pool&Spa XtraBlue Chlorinating Granules 22.5 lb

• Kills green and black pool algae
• All purpose sanitizer, shock and algaecide
• Reduces chlorine odor and eye irritation

5. Spa Essentials 32130000 Chlorinating Concentrate Granules for Spas and Hot Tubs, 2-Pound

• May be added directly to spa, no pre-dissolving needed
• Granular stabilized chlorinator
• Fast acting
• Acts as a sanitizer and an oxidizer, no need for two products
• Quick dissolving

6. Spa Essentials 32131000 Chlorinating Concentrate Granules for Spas and Hot Tubs, 5-Pound

• May be added directly to spa, no pre-dissolving needed
• Granular stabilized chlorinator
• Acts as a sanitizer and an oxidizer, no need for two products
• Fast acting
• Quick dissolving

7. SpaGuard Chlorinating Concentrate - 2 lbs

• Granular stabilized chlorinator
• Fast acting
• Quick dissolving
• Acts as a sanitizer and an oxidizer, no need for two products
• May be added directly to spa, no predissolving needed

8. Clorox Pool&Spa XtraBlue 3" Long Lasting Chlorinating Tablets 25 lb

• 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

9. DryTec Calcium Hypochlorite Chlorinating Shock Treatment for Swimming Pools, 1-Pound (Pack of 24)

• Kills bacteria, controls algae, and destroys organic contaminants in pools
• 24 bags (1-pound each)
• Recommended dosage: 1 pound per 10,000 gallons of water
• Fast-acting quick-dissolving swimming pool sanitizer
• 68% calcium hypochlorite

10. SpaChoice 472-3-3031 Chlorine Granules for Spas and Hot Tubs, 2-Pounds

• Downloadable user guide available under product information: technical specifications
• Stabilized spa chlorine
• Controls algae
• Dissolves quickly and completely
• 56% available chlorine