Physical Characteristics Color: BrownBulk Density: 80 lbs./cu.ft.Specific Gravity: 2.4-2.9Effective Size: 0.30-0.35 mmUniformity Coefficient: 1.6Maximum water temperature: 80°F/26.7°CMesh Size: 18-60Water pH range: 6.2-8.5Bed depth: 30 inc Brand Zeomangan, Made in Taiwan Packing 30 Kgs/Bag (1cft) All Product Facebook Twitter Instagram