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Top User RatedAstral Pool 1647
Form: Grains, Dichloride
Packaging: 5 / 10 kg22,32 € - 39,00 € at 4 stores 
Filters
Clear- Dichloride: Chlorine with moderate concentration (~55–62%), dissolves instantly. Suitable for rapid disinfection or shock chlorination applications, with no significant effect on pH.
- Trichloro: A form of chlorine with very high concentration (~90% active chlorine), offering prolonged disinfection. It is mainly used in dispensers or skimmers (built-in slot – opening in the pool wall for water maintenance).
- Fast Dissolving (SHOCK): For immediate disinfection and elimination of bacteria, algae, and organic residues in pools and spas. Used for rapid restoration of water clarity and quality.