The best filter medium for pure water
The filter sand & gravel we produce is a natural raw material that is turned into a high-quality industrial mineral using state-of-the-art processing techniques. Our products meet the requirements of the DIN EN 12904, DIN EN 15798 and DIN 4924 standards, confirming their use in drinking water treatment and as filters for swimming and bathing pools and well construction. Our filter sand and gravel is free of fines and reliably ensures maximum filtration of the water.
- Pool
- Filtration
- Drinking water treatment
- Waste water treatment
- Well construction
- Boreholes
- Spring tapping
- Groundwater lowering
PE bag (25 kg, 5 kg)
Big bag
Silo truck or tipper lorry
- Bulk density 1,400 - 1,700 kg/m3
- Vibration density 1,500 - 1,900 kg/m3
- Oversize/undersize fraction according to application
- SiO2 ≥ 96 wt.-%
- Al2O3 ≤ 3 wt.%
- Fe2O3 ≤ 2 wt.%
- CaO ≤ 1.5 wt.%
- K2O ≤ 2 WT.%
- Na2O ≤ 1.5 wt.%
- Acid solubility max. 2 wt.%
