Silica Sand for Water Filtration Swimming pool filter sand our product of filter sand and Filter Gravel Exported to more than 17 countries in all over the World. We Are Extracting from High Quality Quarries with SIO2 more than 96.7% which was river sand since thousands of years. The raw materials is generally Extracted from East Egypt, wady al Natron, Sadat City, Giza. Silica sand for water filtration. We produce and process our products in our own screening plant which biggest in Egypt, that is why we confirm stability of quality in long term supplying with Worldwide companies in field of water filtration and Water Treatment, we are Exporting to many countries,Japan,Philippines,Greece,spain,Georgia,Senigal,Syria,Iraq,Georgia,coroatia,Kuwait,UAE, Egypt, Algeria, Qatar, Kuwait, Sultanate Oman, Cyprus, Turkey, Malta, Libya, India, Iraq. Cairo Filter Sand is used to filter and clean Portable water filters and pool filter and sewage treatment plant Purity MORE Than 96%, Free of any organic materials, no clay, no Radiation, no toxic materials. Cairo Filter Sand Meets EN12904 and AWWA B100-96 and BS:910(1969) Physical properties of silica sand and silica gravel Appearance The product is a grey/white, yellow or multicolored granular material. The structure is crystalline, with a smooth to rough texture. The particle shape is spherical or angular depending mainly on the origin and manufacturing procedure (quarrying or dredging, or crushing). The shape influences filtration performance, see A.3. The product shall be generally homogeneous and shall be visibly free of extraneous matter.