Greensand Plus, a purple-charcoal filter media, removes contaminants such as soluble iron, arsenic, manganese, radium, and hydrogen sulfide from well-supplies. Ideal for regional or municipal plants. Combines manganese-dioxide coated surface, along with silica sand core. Works well in water that is low in silica, dissolved solids, and total hardness. Can be used in water over 70 F. without any degradation. Offers same backwash rates, density, and other attributes as companys glauconite-based Manganese Greensand, but withstands higher differential pressures and operating temperatures. In 2,205-lb. sacks or 44-lb. bags.