Macke Water's Xstream Purification System Designed exclusively for Macke Water Systems, our advanced, multi-staged purification system is excellent in reducing virtually all the contaminates in the drinking water including lead, heavy metals, chlorine, voc's, pesticides, bad tastes, odors and particles as small as 1 micron in size including cryptosporidium and giardia cyst. The Macke Purification System is our most popular system because of its ability to remove the bad contaminates and heavy metals while leaving in the beneficial hydrating minerals required by the human body