The third level: sintered activated carbon filter (also known as CTO)

     Specifications: 10 "(25.4CM)
     Treatment of water: about 12 tons
     Use period: 6 to 12 months (recommended for 6 months replacement)
     Function: can effectively absorb the water color， odor， residual chlorine， long life of the compressed activated carbon and high capacity of the network structure， so that the filter has a dual function of the filter performance.