Best Algaecides Deals Online in the UK (24 Deals Found)

Last Updated - 29/10/2026 Sort By:

Best Choice
Clearwater

New
Clearwater Algaecide Algae Remover Hot Tub, Spa & Swimming Pool 1L | Prevents Build-Up, Removes Existing Growth, Clear W
PREVENT ALGAE BUILD UP: on or below the surface of the water in your hot tub or swimming pool

£9.83 £12.99
Dirtbusters

New
Dirtbusters Pro Pool Algaecide (5L) For Swimming pools and hot tubs.
Powerful Pro Pool Prevent Algae Pro Pool Algaecide For Swimming Pools: Effectively Prevents Algae Growth On & Below The

£18.99
New
Bluewater 5l Longlife Winter Algaecide - Swimming Pool Chemicals
This copper-based long life algaecide will help prevent the multiplication of most types of algae for up to 3 months dur

£23.85
Best Value
Pro-Kleen

New
Pro-Kleen Pool Algaecide Algae Remover and Cleaner for Swimming Pools and Hot Tubs 5L Removes & Prevents Growth, Treatme
Powerful pool algae remover quickly tackles green water, black spot and stubborn algae in pools, spas and hot tubs

£18.75 £21.95
New
Pool Algaecide Algae Remover Swimming Concentrated Formula 4 x 5 Litres
1000 Litres Capacity/220 Gallon Capacity: Initial dose: 10ml.

£49.95
Blue Horizons

New
Blue Horizons 5L WINTER TIME LONG LIFE ALGAECIDE WINTERISER (Treats 15,000 gallons) UK
Blue Horizons WINTER OR SUMMER Long Life Algaecide

£29.20
Clearwater

New
Clearwater Algaecide Algae Remover for Swimming Pool and Spa Hot Tub Water Treatment, Highly Effective Formula, 6 Litre
PREVENT ALGAE BUILD UP: on or below the surface of the water in your hot tub or swimming pool

£47.99 £49.99
New
Jarder Pool Algae Remover 20L SPA Hot Tub Algaecide Prevents Growth Concentrate
Jarder Pool Algae Remover 4x5L.

£39.95
Pro-Kleen

New
Pro-Kleen Swimming Pool Algaecide Winteriser Chemical (5 Litres)
This winteriser is designed to help you protect your pool over the winter months! It aids in the prevention of algae, mi

£18.95
New
Jarder Pool Algae Remover 5L SPA Hot Tub Algaecide Prevents Regrowth Concentrate
Jarder Pool Algae Remover 5L.

£19.95
Leisurechem

New
Leisurechem All Season Algaecide 2ltr Copper-Free
Very Simple to use

£19.47
Blue Horizons

New
Blue Horizons Summerclear 2L Pool Algaecide

£27.40
New
Blue Horizons Longlife AlgiMAX Eliminator (2Ltr) Algae Prevention
Blue Horizons AlgiMAX Eliminator is a powerful dual action copper-based algaecide.

£31.90
Desjoyaux

New
Desjoyaux Pools - Premium Grade Algaecide 5L – Long-Lasting Algae Prevention & Treatment for Swimming Pools, Hot Tubs &
Swimming pool algae remover - This premium grade, chlorine-free algae treatment is a quick, simple, hassle-free and extr

£39.99
New
Jarder Pool Algae Remover 10L SPA Hot Tub Algaecide Prevents Growth Concentrate
Jarder Pool Algae Remover 2x5L.

£27.95
10% Off
ULTIMA-PLUS XP

New
Ultima-Plus XP Pool Algaecide - Removes Algae in Pools, Hot Tubs and Spas & Prevents Algae Regrowth - Suitable for all P
FAST-ACTING ALGAECIDE FOR POOLS & HOT TUBS – Quickly eliminates stubborn algae from swimming pools, hot tubs and spas, h

£16.95 £18.90
New
Jarder Swimming Pool Winteriser Algaecide Hot Tub Water Green Algae Remover 10L
Jarder Pool and Hot Tub Winteriser Algaecide 2 x 5L.

£27.95
New
Pool Algaecide Removes Prevents Algae Growth Concentrated Formula 3 x 5 Litres
1000 Litres Capacity/220 Gallon Capacity: Initial dose: 10ml.

£39.95
New
Homefront Algae Remover Hot Tub Spa Pool Algaecide Cleaner Prevents Growth 20L
Algae can easily form in your hot tub, pool or spa as algae spores are everywhere.

£49.95
New
Benzalkonium Chloride BAC50 Algaecide Bactericide Fungicide 250ml 1L Pure Chem
The product is also used as a cationic surfactant and as a phase transfer agent.

£17.49
New
CleverSpa Pool Chemical Starter Kit Chlorine, pH Control, Algaecide
The CleverSpa Pool Chemical Starter Kit includes essential products for maintaining clean and clear swimming pool water.

£18.99
New
Homefront Algaecide Hot Tub Spa Pool Cleaner Algae Remover Prevents Growth 1L
Algae can easily form in your hot tub, pool or spa as algae spores are everywhere.

£12.95
New
Pool Algaecide Removes Prevents Algae Growth Concentrated Formula 2 x 5 Litres
1000 Litres Capacity/220 Gallon Capacity: Initial dose: 10ml.

£28.95
New
Jarder Swimming Pool Winteriser Algaecide Algae Hot Tub Water Treatment 20L
Jarder Swimming Pool and Hot Tub Algaecide Winteriser 4 x 5L.

£39.95

24 Algaecides deals are available from: Amazon, eBay stores, starting from £9.83.
The biggest discount we found is 24% on Clearwater Algaecide Algae Remover Hot Tub, Spa & Swimming Pool 1L | Prevents Build-Up, Removes Existing Growth, Clear Water, Easy Dosage Guide, Regular Maintenance at Amazon.
The lowest price we found is £9.83 while the highest is £49.95.
Prices for the best Algaecides deals average at £28.22.
Last updated on October 29, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Algaecides.