VS-70 Under Counter Water Ionizer Achievable pH levels: 2.3 to 11.8; ORP Levels: +1,2000 to -865 (Dependant on source water) ORP Levels: +1,2000 to -865 (Dependant on source water); Approx. Life is 9 to 12 months) Seven (7) push button water selections 4 alkaline water & 1 neutral water and 2 acidic water Seven (7) electrode plates of titanium nano platinum titanium Warranty: Manufacturers Limited Lifetime Warranty