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Kills Black and Mustard Algae
In-stock orders dispatched:14:00
Rebranded From Fi Clor
HTH Blackal Shock Algaecide is a complex, high dose Copper Based Algaecide. It is specifically designed to destroy chlorine resistant algae, such as Black Algae, Mustard Algae and Pink Algae, without using a chlorine shock treatment.
Warning - this product should not be overdosed: maximum use is once every three months
Starting at £7.16 £5.97
Starting at £1.33 £1.11
Max file size: 6 Mb
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