RO filter brand recommendation, pls

I 2nd Purelyh20...however the about 60 bux more you can get a 4 stage filter system with DI, which would bring your tds down to 0! Dependant upon your water quality currently the Nano, may or may not be enough to bring that tds down any lower....

Linky
 
Why don't you do with just a DI unit...no RO? If you're water needs are truly "nano" sized this may be a better alternative.
 
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