High purity, low sodium, natural zeolite mineral (14 x 40 mesh) that is classified as GRAS (Generally Recognized As Safe) under 21CFR Part 182.2729 and 40 CFR Part 180.1001 with ANSI/NSF Standard 61 Listing. The material is mined, crushed, dried and double-screen, sized to produce a high quality filter media with Uniformity Coefficient (D60/D10) of 1.7 having high through-put capacity at low differential pressure. The alumino-silicate crystal mineral material has surface micro-mineral projections with 0.25 to 10 mm spacing that effectively trap suspended solids in water streams (see Figure1 & 2). The surface micro-projections, together with the high surface area makes this material an ideal water filtration media. The material is mineralogically and thermally stabile to 5000C. Some advantages of CQ-SD5 Filter Granules versus conventional sand, anthracite and multimedia filter media are listed below. · Higher filtration capacity without additional capital costs. · Reduced backwash frequency reduces costs and saves labor. · High flow rate capacity - gravity flow (4 gpm/ft2) & pressure vessels (12-18 gpm/ft2). · Linear/near linear, head loss curve with superior, depth removal of suspended solids. · Superior filtration rating (5 micron nominal) translates to enhanced water quality. PHYSICAL PROPERTIES: Bulk Density                         55 lbs. per cubic foot Mesh Size                            14 x 40 Color                                   Light green Surface Area                         Avg. 24.9 m2/g Surface Absorption                Hydrophilic Thermal Stability                   Stable to 500° C Filtration Nominal Rating        <5m   APPLICATIONS: CQ-SD5 Filter Granules are used as a water/liquid, filter bed (or tank) material in lieu of sand/anthracite, pecan shells or other coarse filtration material to efficiently remove suspended solids and fine turbidity particles. The filter granules physically filter and trap the suspended solids. In addition, the granules remove a wide range of colloidal and soluble, inorganic metallic, contaminants by surface sorption, chemical-binding, charge neutralization, coagulation, reactions and/or ionic, ion-exchange phenomena.