Filter Sand and Gravel - Southern Products & Silica Co., Inc. P.O. Drawer 189Hoffman, NC 283471.800.572.6348910.281.3189(fax)910.281.3815 Water Filter Sand and Gravel: Product... Sizes Filter Sand Effective Size Uniformity Coefficient* .45mm-.55mm U.C. 1.6 .80mm-1.20mm U.C. 1.6 *Maximum Filter Gravel 2 1/2 x 1 1/2 3/4 x 1/2 1 1/2 x 1 3/8 x 3/16 1 1/2 x 3/4 1/2 x 1/4 1 x 3/4 1/4 x 1/8 1 x 5/8 3/16 x #10 Mesh 1 x 1/2 #5 Mesh x #16 Mesh ...

, Inc. has manufactured superior quality specialty sand and gravel products for a wide variety of commercial and industrial applications. Our Drowning Creek quarry consists... and hardness to resist degradation during handling and use. This material is less likely to spall and block a filter than weathered, softer material mined on or near the surface... of the ground. All material is washed, screen-sized, re-washed and sized again according to standards outlined in the current American Water Works Association Standard for Filtering Material, B-100 as applicable. ...

results indicate all sand and gravel produced meet or exceed the current American Water Works Association Standard for Filtering Material, B-100 listed below: View Material Safety...