Selling anthracite is used as a water filter media that functions like silica sand but with better performance. Water Partners
Anthracite is an Older Type of Coal with Higher Carbon Characteristics and Lower Volatile Metter Than Bituminous, Lignite, Cool Brown, More Glossy Color. Used As A Filter Media For Water Treatment As A Substitute For Silica Sand Or Used Together With Silica Sand. Anthracite Performance As A Media Filter Transports Turbidity In External Void Different From Active Carbon That Absorbs Dirt In Internal Cavities, Anthracite Withstands Impurities In Outer Cavities Between Particles. Lifting Dirt Is Greater Than Silica Sand So this filter media has larger outer cavities so that it can lift a lot of dirt. Filter from the top to the bottom of the silica filter works only in the upper layer of the bed, while the water filter media can filter from the top to the bottom of the bed layer. Easy To Clean (Back Wash) Has High Resistance To Chemicals. Available in a variety of sizes including: 1-2 mm, 2-4 mm, 3-5 mm etc., according to customer orders.