Hotzone Algaecide 1lt (12 per ctn)
Specifically designed for very serious green, black or mustard algae, very effective in hotter climates and larger heated pools. Controls serious Black Spot and Mustard Algae.
HOTZONE contains 47.6 gm/litre complex blend copper salts plus Benzyl Ammonium Chloride.
For best results:
HOTZONE will greatly reduce your chlorine requirements.