Gravel & Pebble

Gravel filter media are known as supporting layer filter medias.

The specificaitons as below:

Density:2.66 g/cm3    Bulk density: 1.85g/cm3

SiO2: >98%          Hardness: 7.5

Pebble size: 2-4,4-8,6-8,8-16,16-32mm; 3-5,5-8,8-10cm etc

Gravel size:1-2,2-4,4-6,6-8mm

Application: water treatment plant as supporting layer filter medias