The Zodiac UV Blockout is 99.6% pure cyanuric acid that protects your chlorine from UV rays, allowing them to sanitise your pool properly before getting burned off by the sun.
Features –
- Protects chlorine from ultra violet light
- 996g/Kg (99.6%) Cyanuric Acid
- Allows chlorine to work more effectively
- Reduces chlorine demand
- Fast Dissolving