BioGuard MSA Extreme is a patented, non-staining, highly concentrated copper-based algaecide powerful enough to kill all types of algae in swimming pools.

It is formulated to insure against instances of ‘green hair’, water discolouration and pool surface staining so often encountered with copper-based algaecides.

• Compatible with both chlorine and bromine systems.
• For use in pools of any surface and filter type.
• Also clarifies pool water.