Valli Granulati is the leading manufacturer and distributor of silica sands, intended for the water purification industry.

Thanks to the mechanical filtering action of the sand, the fluids passing through the filters, which filled with sand, are cleaned from solid residues.

Sand is the right solution for the purification of water, both in the ecological and economic sense.

Valli Granulati also offers various types of minerals, such as anthracite, activated carbon, calcium carbonates, garnet, pyrolusite, zeolite, etc…