Features:

  • 5 times less area occupied.
  • 25 m2 ? 5m2 of sand.
  • Particle sizes from 0.5 to 2 and 2-5 mm.
  • <2% dust.
  • Durability.
Applications:
  • Sewerage and semi-collective.
  • Tertiary treatment.
  • Other biological filtration gravity.