Anthracite Filter Media Company
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- Anthracite - Filter Gravel Media
Anthracite - Filter Gravel Media
Filter Gravelsare mined from high quality aggregate reserves with high hardness physical properties. Thereby making them suitable for extended use with the water and wastewater filtration plants without deteriorations. Our filter gravels meet or exceed the AWWA-B100 and ANSI/NSF-61 Standards.
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Physical Properties
- Hardness (Moh�s Scale) - 7 Avg.
- Specific Gravity - 2.65 Avg.
- Density - 100 Lbs/Ft3
- Color - Gray to Amber
- Acid Solubility (AWWA B100) - < 1%
- Porosity - 37 - 40%
Typical Chemical Analysis (%)
- Silica as SiO2 - 90.27
- Aluminum as Al2O3 - 4.53
- Sodium as Na2O - 1.72
- Potassium as K2O - 0.50
- Iron as FeO - 0.77
- Magnesium as MgO - 0.037
- Calcium as CaO - 0.87
- Titanium as TiO2 - 0.11
- Iron Oxide as Fe2O3 - 0.087
- Asbestos - None
Typical Sizes
- 1/8" X 1/16"
- 1/4" X 1/8"
- 3/8" X 1/4"
- 1/2" X 1/4"
- 3/4" X 3/8"
- 3/4" X 1/2"
- 1-1/2" X 3/4"
Packaging
- 50 or 100 Pound Bags
- Supersacks
