... manganese sand filter media. Rough appearance, brown color, can remove the Manganese and Ferrum in the water, very ... surface and make it deposite, this way the Ferrum can be removed and the water will be clear.PropertiesManganese sand filter with ... 35% either removing iron, but also manganese, MnO2 ≤ 30%,can only be used for remove iron from ground water).SpecificationItemTest dataItemTest dataMnO225 ...