Nuvo H2O Dpmb-a Manor Water Softener System, 8 X 26" - New Model - No More Hard Water by Using Revolutionary Technology! The NuvoH2O Manor System uses revolutionary technology to lower the pH level of water based on the basic scientific process of chelation in which the mineral ions causing hard water, principally calcium and magnesium, are bound to the chelating agent in NuvoH2O's FDA-approved, proprietary formulation, which keeps the minerals soluble and unable to cause hard water problems. Prevents scale build-up and removes existing hard water scale For home with 4 or more residents or for homes over 2,000 sq ft Cartridge Lifespan: about 50,000 gallons FDA & NSF approved