Silurian™ brand Pool Filter Sand

Silurian™ Pool Filter Sand, processed to exacting sizes and uniformity coefficients, meets the most stringent water purification standards...day after day...month after month...year after year. This high quality quartz is structurally sound. It is processed using modern techniques and equipment to ensure proper washing, drying and screening. Silurian is produced at our plants in Ottawa, Illinois. 

Physical Properties:
pH Value - 7.0
Specific Gravity - 2.65
Hardness (Moh's Scale) - 7.0