Filter 4: pH Mineral Balls (stage 5)Increases pH, adds calcium, magnesium, and other beneficial trace minerals.
Filter 2: NSF Certified Granular Activated Coconut Carbon (stage 3)Reduces chlorine, herbicides, pharmaceuticals, industrial chemicals, tri-halomethanes, heavy metals, organic chemicals, particulates, odours and tastes. Filter 6: Natural Silica Sand (stage 7)Acts as a second filter and polishes the water, initiating optimal pH balance.This filter is compatible within the Santevia Counter Top Mineralizing Water System, executing steps 2 to 7 of the 9-stage Gravity filtration process.