Hot Tub Chemicals
Hot Tub Chemicals for Crystal Clear & Healthy Water
Shop our extensive range of high-quality hot tub chemicals online, delivered to your door with fast, next-day UK shipping. We stock only trusted, top-brand products at some of the best prices in the market.
New to Hot Tub Chemicals?
If you're just getting started, our affordable starter kits are perfect for beginners. Use our symptom-based shopping filters to find the right products for your specific hot tub needs, without the guesswork. Check out our easy-to-follow guide for using simple guide to using hot tub chemicals and take a look at our easy to use hot tub chemical starter kits
Experienced Hot Tub Owners
For seasoned users, we offer a wide selection of refills for sanitisers, water balancers, testing and cleaning supplies to maintain and troubleshoot your hot tub effortlessly.
Basics to help get your started - Featured hot tub chemicals from Pool Pro
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Pool and Hot Tub pH Increaser (1 kg)Perfect for soft water areas, the pH Increaser (1 kg) raises the pool or hot tub pH water level. A quick and efficient way to prevent or cure the problems caused by low pH. Learn More£8.95 - AquaSparkle Spa Hardness Plus (1 kg)AquaSPArkle Spa Hardness Plus is an effective product used for increasing calcium hardness levels within your hot tub water. Learn More£8.95
- Pool and Hot Tub Mini Chlorine Tablets 20g (1 kg)Highly effective, the slow dissolving Mini Chlorine Tablets 20g (1 kg) are formulated to sanitise the pool and hot tub water and ensure safe bathing by protecting against unwanted bacteria and algae. Learn More£8.95
- 1kg Alkalinity Increaser for Hot Tubs and Swim Spas
Total Alkalinity Increaser 1kg to use in Hot tubs and Swim Spas to raise the level of total alkalinity in the water, ensuring bather comfort and avoiding long term damage to equipment.
Learn More£8.95 - Pool and Hot Tub Stabilised Chlorine Granules (1 kg)Chlorine Granules (1 kg) with built in stabiliser, a superior quality sanitiser for pool or hot tub water. Learn More£8.95
- Pool Floating Duck Chemical Dispenser (Small Tablets)Floating Duck Chemical Dispenser to use with small santiser tablets 20g in small pools, hot tubs or swim spas. Learn More£7.95
- Pool Floating Chemical Dispenser (Bromine Feeder)Pool Floating Chemical Dispenser (Bromine Feeder) to use with bromine sanitiser tablets in pools, hot tubs or swim spas. Learn More£6.95
- Immerse Cartridge Cleaner Aqua Sachet (2 x 50g)Immerse Cartridge Cleaner Aqua Sachet (2 x 50g) is specially formulated to remove dirt and grease from hot tub cartridge filters. Learn More£5.39
- Pool Floating Chemical Dispenser (Small Tablets)Small Floating Chemical Dispenser 5" to use with 20g santiser tablets in small pools, hot tubs or swim spas. Learn More£4.95
- Spa Fusion Aqua Sachet (35 g)Spa Fusion Aqua Sachet - Fast reacting formula for rapid hot tub water recovery by destruction of non-filterable wastes. Learn More£3.75
- 30 X Phenol Red - pH Test TabletsPhenol Red - Rapid dissolving test tablets for measuring the pH levels in swimming pools and hot tubs. 3 Strips x 10 tablets. Learn More£3.60
- 30 X DPD1 - Chlorine Test TabletsDPD1 - Chlorine Test Tablets - Rapid dissolving test tablets for measuring the free chlorine levels in swimming pools and hot tubs. 3 Strips x 10 tablets. Learn More£3.60Out of stock
