I bought my first one of these filters Jan 24th as a new tenant. It lasted almost two months.  The ice maker stopped working when the replacement light for the filter came on, so I'm buying another one now to see if there's a connection (my husband thinks there is).   I hope I don't have to buy one every two months but the water does taste way better than our tap water.  I'll update this or write a new review when the next filter needs replacing.  We are a family of four, one runs marathon(s) each year, so it's likely we drink more h20 than most from our fridge.  Hmmm maybe we will track the gallons we draw from it this time with a gallon pitcher.

Fun science and sharing. More soon.