WhichOne › DIY store & garden › swimming pool › pool accessory › chlorine tablet

The best chlorine tablets in comparison

Guaranteed independent and reliable
Millions of satisfied users every year
Last updated on 03.04.2025

Filter

Sort

Brand:Reduced items only:

Best choice

Crystal Clear 4in1 Multifunction Chlorine Tablets for Hot Tubs, Spa, Swimming Pools. 1kg 50 x 20g Spas Paddling Pool Hot Tub Chlorine Tablets

CRYSTAL CLEAR

free shipping

show more show less

9,9

Check price

Show on Amazon

Features

4-IN-1 MULTIFUNCTIONAL CHLORINE TABLETS Our Crystal Clear 4-in-1 premium multi-function chlorine tablets offer a simple all in one disinfection solution to sanitise and stabilise your water whilst preventing algae growth and clearing cloudy water
CRYSTAL CLEAR CLARITY Our unrivalled market leading quality tablets offer guaranteed purification with a top quality algaecide for eliminating algae growth plus a high grade clarifier to pick up tiny particles which can freshen the water clarity to make it sparkle back to life.
HOT TUB POOL SPA Our versatile chlorine tablets are suitable for use in all water conditions and types of home leisure... from paddling pools all the way through to swimming pools Crystal Clear chlorine tablets have you covered.
SLOW RELEASE UV RESISTANT Our chlorine tablets will dissolve slowly and evenly over 3-5 days giving a steady replacement of chlorine loss to maintain optimal safe bathing levels without hassle. With a special UV resistant formula also prevents chlorine loss caused by sunlight which helps towards easier water balancing and maintenance of chlorine levels.

£ 12.75

£ 13.95

£ 15.95

Chlorine tablets for hot tubs,Chlorine tablets for swimming pool, chlorine tablets, hot tub chlorine tablets, chlorine tablets for pool,1kg 50x20g

Sapphire Waves

free shipping

show more show less

9,8

Check price

Show on Amazon

Features

CHLORINE TABLETS FOR HOT TUB Crystal Clear clarity, Our unrivalled market leading quality chlorine tablets offer guaranteed purification with only highest grade chlorine which not only disinfects, but also will freshen the water to make it sparkle back to life.
CHLORINE TABLETS FOR SWIMMING POOL Our versatile hot tub chlorine tablets are suitable for use in all water conditions and types of home leisure... from chlorine tablets for paddling pools all the way through to swimming pools Sapphire Waves chlorine tablets have you covered.
POOL CHLORINE TABLETS SLOW RELEASE UV RESISTANT Our swimming pool chlorine tablets will dissolve slowly and evenly over 3-5 days giving a steady replacement of chlorine loss to maintain optimal safe bathing levels without hassle. With a special UV resistant formula also prevents chlorine loss caused by sunlight which helps towards easier water balancing and maintenance of chlorine levels.

£ 11.95

£ 14.95

Chlorine Tablets for Swimming Pool,Hot Tub&Swimming Pool Chemicals,Chlorine Tablets for Hot Tub,Hot Tub& Swimming Pool chlorine tablets,Spa Cleaning Tablets,100PCS（100g）

FRDUGA

free shipping

show more show less

9,7

Check price

Show on Amazon

Features

GREAT FOR HOT TUBS AND POOLS Our versatile chlorine tablets for swimming pools and hot tubs are suitable for use in all water conditions and types of home leisure, from hot tubs all the way through to swimming pools chlorine tablets have you covered.
SUPPORT TEAM These pool cleaning tablets provide a safer, cleaner, and more enjoyable swimming experience.We provides a dedicated, friendly customer support team to assist you with any queries you may have.

100PCS Chlorine Tablets for Swimming Pool and Spas, Slow-Dissolving Long-Lasting Individually Wrapped Chlorine Tabs,1 Tablets for Every 135 Gallons (600 Litters) of Water

Frovetani

free shipping

show more show less

9,5

Check price

Show on Amazon

Features

100% SPECIFICATION CHLORINE TABS Our Chlorine Tabs can Prevents corrosion, scale and stains.
WIDELY-USED These chlorine tabs can be used to swimming pools, kiddle pools, hot tubs and spas, water park and other place that need chlorine such as sink, toilet, fountain, etc.

Recommendation

Pool Crab Pool Chlorine Tablets, 1kg Multifunctional 4-in1 Dispenser Tablets for Swimming Pool, Hot Tub, Spa, 50 x 20g Chlorinating Chemical Tabs (Sanitiser, Stabiliser, Algaecide and Clarifier)

Pool Crab

free shipping

show more show less

9,5

Check price

Show on Amazon

Features

ALWAYS CLEAR WITH POOL CRAB Untreated pool & spa water will harbour and grow bacteria. This is the leading cause for water discoloration, bad smells, and negative health consequences. Use the Pool Crab chlorine tablets to keep your pool, spa & hot tub completely safe for you and your loved ones. We make no compromise on water safety!
MULTIFUNCTIONAL 4-in-1 TABLETS Pool Crab chlorine tablets are industry standard premium quality 4-in1 sanitiser, stabiliser, algaecide & clarifier tablets for cleaning and maintaining your water. The 4-in-1 fast acting chlorine tablets help kill and prevent bacteria, organisms and algae growth. Never change water again!
1KG BUNDLE KEEPS GOING 50 x 20g sun-stabilised slow-release chlorine tabs are protected from the sun and therefore last much longer. The advanced dissolve function releases chlorine slowly and can last up to one week. The chlorine tablets also contain water clarifier which helps to bind debris and particles together so the filter can trap it.
COMPATIBLE WITH ALL Pool Crab chlorine tablets are all rounded versatile tabs which can be used in hot tub, spa, inflatable pool, indoor & outdoor pools, in-ground and above-ground pools with or without floating pool dispenser (dispenser not included).
THE POOL CRAB PROMISE We go the extra mile to ensure you are fully satisfied with your purchase. With the Pool Crab satisfaction promise you can be assured you are in safe hands. If you are not satisfied, we will refund you the full price, no questions asked!

Clearwater 1 kg Multifunction Chlorine Tablets, 4-in-1 Dispenser Tablets (Sanitiser, Stabiliser, Algaecide and Clarifier) for Pools and Hot Tubs, 50 x 20 g, White

Clearwater

30% off

free shipping

show more show less

9,5

Check price

Show on Amazon

Features

GREAT FOR HOT TUBS AND POOLS these chemicals are designed to be used with hot tubs, paddling pools and above ground pools
CLEAR INSTRUCTIONS PROVIDED on the packaging for easy-to-follow guidance and hassle-free application
SLOW RELEASE chlorine tablets will slowly erode over 3-5 days for long lasting application

£ 13.99

£ 7.99

£ 12.09

£ 14.99

£ 19.99

Chlorine Tablets for Hot Tub, 40 * 20g, 4-in-1 Dispenser Tablets for Swimming Pool Paddling Pool Spa Bathtubs

free shipping

show more show less

9,5

Check price

Show on Amazon

Features

Usage Recommendation The tablets can be dissolved in a dosing floater or skimmer, but we recommend using a dosing floater. After adjusting the pH level, place the tablet in the appropriate dosing floater and introduce it into the pool in the evening after swimming.
40-Pack 20g tablets *40 offer a high capacity. They dissolve slowly to ensure an even distribution of chlorine and keep the water clear.
TIP For optimal water care, ensure the correct pH value, which should be between 7.0 and 7.4.
Excellent Effect Prevents the rapid degradation of chlorine even at high water temperatures and under strong sunlight. This makes it particularly effective, even during long absences or bad weather.

British Basics - Chlorine Disinfectant Tablets | For Hot Tubs, Spas and Pools | 200 Tablets 640g White

BritishBasics

show more show less

9,5

Check price

Show on Amazon

Features

Fast acting and fast dissolving
Powerful general purpose water sanitiser

CUQOO Multifunction 4 in 1 Chlorine Tablets for Swimming Pool & Hot Tub - Slow Releasing & UV Resistant, Sanitiser, Stabiliser, Algaecide, Clarifier, Water Cleaning Premium Pool Tablets

CUQOO

7% off

free shipping

show more show less

9,4

Check price

Show on Amazon

Features

Keep your pool and hot tub water safe and crystal clear with CUQOO's 4 in 1 chlorine tablets. These premium tablets act as a sanitiser, stabiliser, algaecide, and clarifier all in one, ensuring a hygienic and enjoyable bathing experience. Slow-releasing over 3-5 days, they maintain optimal chlorine levels without constant maintenance.
& For the best results, maintain a pH level between 7.2 7.6 and chlorine levels of 3-5mg l for hot tubs or 1-3mg l for pools. Always use gloves when handling the tablets and carefully follow dosage instructions to keep your water clean and safe for use. PACKAGING MAY VARY.
Whether you're using a floating dispenser, chlorine feeder, or skimmer basket, these versatile tablets are easy to apply. Ideal for both hot tubs and swimming pools, they simplify water maintenance by delivering a steady dose of chlorine to keep your water clean and safe.

Chlorine Tablets for Swimming Pool and Spas, 100g Chlorine Tablets for Hot Tub, Water Cleaning Tablets For Paddling Pool,Bathtubs and Spa, Make The Pool Clearer

SZCLKJGS

free shipping

show more show less

9,4

Check price

Show on Amazon

Features

Chlorine Tablets for Swimming Pool Hot Tub -- Our 100g chlorine tablets, Ideal for floating dispensers for swimming pool or spa, Keeping your swimming pool water clear.
Widely Use -- These chlorine tabs can be used to swimming pools, kiddle pools, hot tubs and spas, water park and other place that need chlorine such as sink, toilet, fountain, etc.
Quick and Easy To Use -- Use in Floater, Feeder, or Skimmer basket, then put into the pool every week or as often as needed. 1 tab for 10,000 gallons of water.
Safe and Effective Ingredient -- Safe,healthy and durable. Go out to swim or go to the hot springs. Never worry about the chlorine content in the water. With it, you can easily solve the water quality problem.

This ranking is created through algorithmic analysis of millions of products tailored specifically to your search. We aim to find the most suitable product for you based on manufacturer information and price. The ranking reflects our opinion and should serve as a good starting point for your purchase. We would like to point out that we have not tested the products ourselves and link to selected online shops and partners from which we may receive compensation.

You might also be interested in these chlorine tablets.

5 kg Multifunctional 200g large chlorine tablets for swimming pools

stabilised chlorine

~~£ 43.99~~

Check price

Bluewater 5kg Multifunctional Chlorine Tablets 200g Swimming Pool Chemicals by PoolShopUK

5Kg Multi-functional Chlorine Tablets

Check price

Deep Blue Pro - Mini 20g STABILISED Chlorine Tablets 1kg SLOW RELEASE

All-in-one Cleanliness These mini tablets combine chlorine, clarifier, and algaecide in one convenient solution, keeping your hot tub hygienically clean and crystal clear.

free shipping

Check price

ClearSpa 20g Chlorine Tablets 5kg - Suitable for Hot Tub, Spa and Swimming Pool Treatment

Use in skimmer baskets or floating dispensers.

free shipping

Check price

SUDS-ONLINE 50 x 20g Multifunctional Chlorine Tablets for Hot Tubs Swimming Pool

SUDS-ONLINE Hi-Quality Multifunctional Chlorine Tablets (20g)

~~£ 12.95~~ free shipping

Check price

Chlorine Dispenser, Floating Chlorine Dispenser for Hot Tub Pool Chlorine Floater, Stretchable Tablet Dispenser Chlorine Dispenser for Swimming Pool Paddling Pool Lazy Spa Water Parks(5 Inch)

Floating Easily Stretchable chemical dispenser float is designed for dispensing bromine and chlorine tablets in your swimming pool, keep it clean and up to standard. Our auto floating chlorine dispenser floats around Diffusing chemical tablets effortlessly! The right amount of chlorine to be released over time, evenly distributed! Never worry about chlorine levels in your swimming pool or spa. Humanized design of our chlorine granules dispenser allows you to rest assured.

~~£ 10.99~~ free shipping

Check price

Palintest WT 442 Instachlor Rapid Release Chlorine Tablets - PR 1000 (1.7 g) Pack of 100

Contains 1.7g of active ingredient (NaDCC)

free shipping

Check price

CHLOR-CLEAN Chlorine Detergent Sanitiser Tablets, 3.25g Tablets, 1.7g NaDCC per Tablet, Single Tub of 200 Tablets

CHLORINE DETERGENT SANITISER TABLETS - Simply dissolve one tablet in a litre of water to create a powerful sanitising solution that delivers 1,000 ppm (parts per million) of available chlorine, ensuring robust disinfection for various surfaces.

free shipping

Check price

Garden Genie - Chlorine Disinfectant Tablets | For Hot Tubs, Spas and Pools | 200 Tablets 640g

Garden Genie Chlorine Tablets are formulated with high-quality, concentrated chlorine, which ensures quick and efficient hygienic cleaning which helps in creating a healthy swimming environment.

free shipping

Check price

Blue Horizons Large Chlorine 200g Tablets - Tub of 5 Kg

When dosed via the skimmer the tablet(s) will dissolve slowly over a 3 to 4 day period, the rate at which they dissolve will vary depending upon water flow and temperature.

Check price

Deep Blue - Multifunctional Mini 20g Chlorine Tablets 1kg Long lasting stabilised clarifier algae inhibitor

Crystal Clear Water The clarifier prevents cloudy water, leaving your hot tub sparkling inviting.

free shipping

Check price

ClearSpa Multifunctional 20g Chlorine Tablets 5kg - Suitable for Hot Tub, Spa and Swimming Pool Treatment…

ClearSpa full range of Spa, Hot Tub & Pool Chemicals

Check price

The best chlorine tablets in comparison

Guaranteed independent and reliable

Features

Features

Features

Features

Features

Features

Features

Features

Features

Features

You might also be interested in these chlorine tablets.

Our offer