Clean, healthy water from every tap in your home. Reduces chlorine, lead, and more for up to 600,000 gallons or 6 years. NSF tested and full system certified to Standard 42 for the removal of up to 97% of chlorine. Also reduces lead, pesticides, VOCs, and more. Our NSF Certified whole house water filter system is comprised of carefully sequenced stages, each with its own unique formula of high-potency, contaminant-grabbing media and filtration.