Advertising Disclosure Clever Spa Chlorine Granules Comparison - October 2025
4 Best Clever Spa Chlorine Granules In the UK
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
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| 1 Best Choice  9.7Exceptional | 2  9.6Exceptional | 3  9.5Excellent | 4 Best Value  9.3Excellent |
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ModelSUDS-ONLINE 500G Stabalised Chlorine Granules - Swimming Pool Chemicals & Spa | Model SpaChem 1kg Spa Chlorine Granules Premium Grade Stabilised Chemicals for Hot Tubs, Spa and Swimming Pools | Model ClearSpa Chlorine Granules 1kg - Suitable for Hot Tub, Spa and Swimming Pool Treatment | Model 1 Kg STABILISED Chlorine Granules for Hot Tub Spa and Swimming Pool Water Treatment for Rapid Disinfecting and Cleaning |
BrandSUDS-ONLINE | Brand SpaChem | Brand ClearSpa | Brand SHATCHI |
Reviews | Reviews | Reviews  | Reviews |
Tech Specs | |||
product dimensions 8 x 8 x 15 cm 500 g | product dimensions - | product dimensions - | product dimensions 9.9 x 9.9 x 18 cm 1 kg |
customer reviews4.5 4.5 out of 5 stars 1, 733 ratings 4.5 out of 5 stars | customer reviews 4.5 4.5 out of 5 stars 52 ratings 4.5 out of 5 stars | customer reviews - | customer reviews 4.4 4.4 out of 5 stars 1, 357 ratings 4.4 out of 5 stars |
Available On | Available On | Available On | Available On |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.7
1SUDS-ONLINE16% OffSUDS-ONLINE 500G Stabalised Chlorine Granules - Swimming Pool Chemicals & Spa
Why we love it
Our chlorine granules wont be broken down by sunlight, meaning theyll last longer.
Theyre perfect for using in pools, hot tubs and spas, both indoors and out.
Routine use of our granules helps to maintain a safe bathing environment.
Main highlights- Swimming Pools: Routinely use between 2-3ppm residual chlorine in small or domestic pools and 3-5ppm in public or heavily used pools. For each ppm of chlorine increase required use 40g per 25,000 Litres of water.
- Spas and Hot Tubs: To increase the free chlorine level by 2.5ppm, add 5 grams (a teaspoon). On average you should need approx. 1 teaspoon per person using the spa. Maintain a chlorine level of between 2-4ppm and a pH level of 7.2-7.6 in your spa. Re-adjust the pH balance to between 7.2-7.6 for optimum bathing comfort.
- Our chlorine granules are manufactured with a stabilising agent to help prevent the destabilisation and destruction of the chlorine by sunlight and UV rays. This prolongs their usefulness as a sanitiser over other types of non-stabilised chlorine and makes them ideal for use in swimming pools, spas and hot tubs whether located indoor or outdoor. These chlorine granules should be routinely used to help maintain a safe bathing environment.
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9.6
2SpaChem
SpaChem 1kg Spa Chlorine Granules Premium Grade Stabilised Chemicals for Hot Tubs, Spa and Swimming Pools
Why we love it
Rapidly dissolves for quick and easy use.
Ideal for daily spa and hot tub disinfection.
Effectively kills bacteria and harmful organisms.
Main highlights- Test the water with a CHLORINE test kit, the ideal reading for free chlorine is 2 – 3ppm
- Spa Stabilised Chlorine Granules are ideal for daily disinfection of Spa & Hot Tub water
- Spa Chlorine Granules are rapid dissolving and are specifically formulated to disinfect Spa and Hot Tub water
- Kills bacteria and eliminates harmful organisums in you spa or pool water
- BPR Compliant Biocide & Disinfectant
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9.5
3ClearSpa
ClearSpa Chlorine Granules 1kg - Suitable for Hot Tub, Spa and Swimming Pool Treatment
Why we love it
Chlorine Granules rapidly dissolve and disinfect spa and pool water with minimal effect on pH value
Can be added directly to water with circulation running and temperature above 20 C
ClearSpas full range of chemicals for spa, hot tub, and pool disinfection
Main highlights- Spa Chlorine Granules can be added directly to the water with circulation running and water temperature above 20°C
- Minimal effect on the pH value of the water.
- ClearSpa full range of Spa, Hot Tub & Pool Chemicals
- Chlorine Granules are rapid dissolving and are specifically formulated to disinfect spa, hot tub and pool water
- Chlorine Granules are ideal for daily disinfection of the water
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Features
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Consumer Reviews
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Popularity
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Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
