Product review (2 stars): the Aquarius filter's PPM reading was still worse than my one-year old Samsung brand filter (192 vs
I bought three of this filter from a group coupon special but decided to return them all because after installing and flushing out over 6 gallons of water, the Aquarius filter's PPM reading was still worse than my one-year old Samsung brand filter (192 vs. 127, respectively).  Very disappointed.