6 Stage Alkaline Under Sink Reverse Osmosis Drinking System Extra 9 Water Filter

  

The purified water will flow through the tube in the middle. The filter should be replaced every 3-6 months so that you can continue to taste the fresh water. It rebalances the water with active mineral technology adding calcium, potassium, magnesium, and other essential minerals back to the water, giving your drinking water a more natural taste.