easy. Stop searching and just buy this one. He has a great price. You won't see better performance from devices that cost twice as much. I was looking for a tea filter and came across this device at the bottom of the page so I figured I should stop and write a quick review. I actually purchased this unit from Revain on June 25, 2012. That's 5 1/2 years ago. and that's 5 1/2 years of flawless work. I had to replace the disposable water filter three times. I tested the effect of ionization with a $250 Extech pH meter - it works as advertised. So I'm pretty sure I'm giving it a 5 star rating. My brother has two more expensive devices that are twice the price of this one. There is no difference in performance other than I think my Aqua Life unit looks better on the counter. And I'll say it again, I had the perfect job for 5 1/2 years. So that's a silly simple recommendation.
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