The apex countertop drinking water filter is a revolutionary system that eliminates impurities that impact the color, taste and safety of drinking water, but it's not just what it takes out of the water that you drink that makes it a must-have for the home. This filtration system also helps to naturally balance the pH of water, to better suit your body chemistry. As a result, every sip of water you take provides you with antioxidant protection and offers purifying, detoxifying benefits that are a perfect fit for your healthy lifestyle. This filter is easy to use, as it installs right on top of your counter and can be simply maintained by regularly changing its 10-inch filters on a regular basis. 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 - 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 - neutralizes your water with calcite while increasing alkalinity. Proponents say alkaline water can neutralize acid in your bloodstream, boost your metabolism and help your body absorb nutrients more effectively. Alkaline water helps to prevent diseases and slow the aging process. It also helps slow bone loss. Filter effectively removes hundreds of contaminants from water. Accepts all standard 10-inch replacement filter elements. Slim, portable, compact design - made in USA.