Product review (5 stars): It works and is Cheaper here than Lowes
20% Cheaper than at Lowes.  A good way to tell if it's doing what it's supposed to.  Fill a cup with tap water and a cup full of filtered water.  Let them sit for 24-48 hours. Smell and taste.  Tap will probably smell and taste like chlorine.  But in reality, it's all a scam for the company to keep us buying there products.  oh well.