This reviewer received promo considerations or sweepstakes entry for writing a review.
I've used these for about 2 years. Cartridge lasts for about 6 weeks, depending on use (in my case, two people, about 20 cups of water per day average). Fresh cartridges give fantastic water, with less than 2 ppm of any contaminant (using the ZeroWater meter). My tap water measures about 300 pm. I can tell when filter is used up because ppm rises to over 6 and water tastes stale. I keep buying because nothing else removes lead as well.
