Gravel KREMER 3,15 - 5,6 mm, 25kg bag

3,15 - 5,6 mm - this fraction of sand is called quartz gravel and is used as a supporting layer in filters of household and drinking water supply, as a filler in various industries.
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Kremer Gravel 3.15–5.6 mm (25 kg)

⚙️ High-quality filtering material for water purification systems

Kremer 3.15–5.6 mm is carefully calibrated quartz gravel designed for use in water filtration systems. It undergoes multi-stage processing, including washing, hydrosorting, and sieving, ensuring high purity and consistent material quality.

✅ Applications:

✔️ Drinking water filtration
✔️ Swimming pool water purification
✔️ Water supply and treatment systems
✔️ Industrial and household filtration units

⚙️ Technical Specifications:

  • ✔️ Grain size: 3.15–5.6 mm

  • ✔️ SiO₂ content: ≥ 97%

  • ✔️ Color: light gray

  • ✔️ Density: ~2.65 g/cm³

  • ✔️ Bulk density: 1400–1600 kg/m³

  • ✔️ Mohs hardness: ~7

  • ✔️ Packaging: 25 kg bag

  • ✔️ Standards: EN 12904, DIN 19643