I have been the VERY PROUD owner of a 23-cup ZEROWATER Dispenser for 3 years now and couldn't be happier. I happen to Live upstate N.Y. and we have sulfur water. This filter system makes my water odorless and great tasting! I have already turned 2 of my neighbors on to this product and they both bought a 23 cup Dispenser for themselves. I will NEVER be with out my ZEROWATER!!!