With do-it-yourself installation, this filter uses Claryum technology plus a 20 micron Pre-Filter to reduce 77 contaminants from your drinking water including chlorine, lead, pesticides, PFOA/PFOS, and more. Expertly designed, patented Claryum technology removes unwanted contaminants while retaining the healthy minerals found in tap water like calcium, magnesium, and potassium. This triple-filter technology does not use any added chemicals, so you can rest easy knowing that the only thing in your water is water. Traditional filter pitchers use gravity to filter water, making you wait for clean drinking water. Aquasana’s filter connects to your sink’s water line, providing immediate access to healthy, great-tasting water. In all, the Aquasana Claryum 3-Stage tackles 15 times more contaminants than the leading pitcher filter. Installed underneath your sink and in a cabinet, this NSF Tested and Certified water filtration system is out of sight and off your countertop. All filtration systems and replacement filters are designed with the environment in mind, using minimal disposable plastic parts. Replacement filters are constructed for easy changes – simply twist off and on. Choose from three different faucet finishes – Brushed Nickel, Chrome, and Oil Rubbed Bronze – to perfectly match your kitchen design.