Our triple washed and screened support gravel is a semi-rounded pea gravel in nominal sizes from 6mm – 40mm. A premium-grade industrial material manufactured to meet the stringent demands of various applications, produced from high quality raw materials. A high silica content and exceptional purity, hardness and chemical inertness make it a preferred choice for a wide range of industries. Utilised as a support media beneath our silica sand and is available in a number of sizes.