Product review (5 stars): No scientific water analysis but looks good to me
Received the filters pretty quickly after purchase.  Removed my old Kenmore/Pure brand filter and installed the Waterdrop filter.  Ran about 3 gallons of water through the new filter.  Flow is normal, color and taste seem normal.  Since I've only had the filter for about 2 weeks I really can't post an honest evaluation of the filters durability but I suspect it will work just add long and as well as aby of the other overpriced brands I have had in the past.  Thanks for selling your filters at reasonable prices.