Product review (1 stars): Defective filters
Order came quickly as usual but the product didn't work like it should.  I've installed several filters over the past couple years and this particular one didn't taste right from the start.  I purged even more water and gave a couple more weeks for filter to get better, but the taste never changed nor did it ever begin to taste like the normal filters I've used before.  Contacted Amazon and will be returning today as well as getting refund.  Not sure if filters can actually go bad or if they just have a defective batch.