Review on iSpring F21KU75 Alkaline RCC1UPAK Replacement by Richard Lamptey

A few years ago we bought a house that had one of these systems installed in the basement and we changed the filters in time. The water tastes great and with all the filters we are sure we are drinking the best water. The first stage has a white filter in a transparent housing and you can watch it slowly turn orange, this is just part of what is being filtered out. Of course, our pets also drink this water. This particular order was missing the reverse osmosis stage and after a quick email to support a replacement was sent. We are very happy with this product.