Product review (5 stars): Glad not a dud!
I usually purchase two filters at a time and last time I made a purchase from other than amazon, one filter last 3 months and the second lasted 2 weeks. So far so good with these filters. They were very reasonably priced and came with free super saver shipping which made them far less expensive than most of the competitors. This was a great find. Would definitely purchase these again from seller.