Product review (5 stars): OK
Great price - Still have a problem - Have very hard water in Arizona this filter plus an Omnipure - two filters only gets my water down to 200ppm  from 450 using the Zero Water - Measuring device.  So two filters - still high on solid particulates  it does extend the life of my Zero Water Filter from one - two weeks more usage.  But am still surprised that it does not get it down more.