Five Stage Filtration Process Stage 1 - Remove Chloramines, Heavy Metal and control Microorganisms with KDF -85. Stage 2 - Removes Chlorine and Odor with Coconut Shell Activated Carbon. Stage 3 - Raises the pH level, removes impurities and hydrates your body while adding minerals that our body does not produce such as calcium, magnesium, potassium with Alkaline Beads. Stage 4 - Removes Chlorine and Odor with Coconut Shell Activated Carbon. Stage 5 - Raises the waters pH and lowers acidity with Calcite. It also increases alkalinity, which many nutritionists recommend. Alkaline Water has a higher pH level than plain tap water. Proponents say that it can neutralize acid in your bloodstream, boost your metabolism and help your body absorb nutrients more effectively. Alkaline water can help prevent diseases and slow the aging process. It also helps slow bone loss. A perfect solution for household of any size. Easy installation. Filter effectively removes hundreds of contaminants from water. Meets all plumbing codes. Accepts all standard 10-inch replacement filter elements. Slim, Portable, Compact Design - Made In USA.