10 bestPool Algae Killerof October 2026
112M consumers helped this year.
14% off
1

Pro-Kleen Pool Algaecide Algae Remover and Cleaner for Swimming Pools and Hot Tubs 5L Removes & Prevents Growth, Treatment, Long-Lasting Professional Formula For Clear Water
Pro-Kleen

9.9
5% off
2

Cleenly Pool Algae Remover - Removes & Prevents the Growth of Green in Water - Super Concentration and Long Lasting 5L
Cleenly

9.8
5% off
3

Desjoyaux Pools - Premium Grade Algaecide 5L – Long-Lasting Algae Prevention & Treatment for Swimming Pools, Hot Tubs & Spas – Powerful Pool Chemical for Clear Water, Prevents Green Algae Growth
Desjoyaux

9.7
4

10L of Pro-Kleen Pool Algae Remover - Removes & Prevents Algae Growth - High Concentration, Long-Lasting Professional Formula
Pro-Kleen

9.4
10% off
5

Algaecide For Swimming Pools & Hot Tubs 1 Litre – Algae Remover – 1 Litre Treats 45,000 Litres – All Year Round Copper & Quat Based Algicide – Prevention of Algae Formation – No More Mr Nice Guy
No More Mr Nice Guy

9.1
14% off
6

Ultima-Plus XP Pool Algaecide - Removes Algae in Pools, Hot Tubs and Spas & Prevents Algae Regrowth - Suitable for all Pools (5 Litres)
ULTIMA-PLUS XP

8.9
7

Pro-Kleen Pool Algae Remover 20L - Removes & Prevents Algae Growth - High Concentration, Long-Lasting Professional Formula
Pro-Kleen

8.6
8

Greena Fountain Clear PLUS 1000ml— Remove Algae Fast. Restore Crystal-Clear Water. Removes Biofilm Build-Up For Fountains and Water Features up to 30,000L
Greena

8.3
25% off
9

Safe Splash Algae Eliminator 2 Litre - Fast Algaecide for Swimming Pools & Hot Tubs, Clears Green Water, Prevents Algae Regrowth, Easy Weekly Maintenance Treatment
SafeSplash

8.0
10

Pro-Kleen Pool Algaecide Algae Remover 1L and Cleaner for Swimming Pools and Hot Tubs Removes & Prevents Growth, Treatment, Long-Lasting Professional Formula For Clear Water
Pro-Kleen

7.7
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