Product review (4 stars): Good tasting water!
I have for years used the manufacturer model of filter cartridge faithfully.  That all now changes I think, this was my first purchased from this manufacturer, and I can assure you that the product delivers a refreshing glass of water and tasting ice.  I have no way to test the filtration quantities but when judged on taste it matches.  To verify that the filter was creating the good clean taste I removed it from the fridge and tasted the water, yikes, major difference!