SILICA SAND SIZE 14-20 Silica Sand function is: 1. Aquascape Media 2. Water filter / water filter | can also filter out mud, soil, and particles both large and small in water & commonly used for early stage filtration. 3. Making glass / glass, mixture of cement, ceramics, etc. 4. As a metal / metal roofing material to muffle the sound of rain. 5. Sand blasting 6. etc. Hub: ORIENT TECH Jl. Delta sari beautiful av no 33 Tel: 031-99042029 Fax: 031-8536552, Hp: 081234544118, 08114933420, 089677880084 WA: 081234544118 Email: [email protected] Website: https://orientaltechnaco.com