Description Feature: This machine it can be use to softered water, it can removed the Ca+, Mg+ in the water by filter element, that it can reduce the rigidity of water, it make water more softered. Product Feature: 1) use stainess steel 304 2) outside dimension (diameter * higher): 300*1600, 400*1600, 500*1600 and 600*1600 3) we can produce it as your demands