Natural Zeolite for Water Filtration Size:0.8-1.5,1-1.8,1-2, 2-3, 2.5-3, 2-4, 4-8, 8-16mm Good quality, Relative comp Natural Zeolite for Water Filtration:Size:0.8-1.5,1-1.8,1-2, 2-3, 2.5-3, 2-4, 4-8, 8-16mmGood quality,Relative competitive price Application of Natural Zeolite in filter water:It can purify water turbidity, chroma, smell, and to harmful heavy metals, such as:cadmium, nickel, zinc, ...