I'm looking to buy one. The reasoning is: I got $200 to spend at Amazon.com (card).
My reason for buying Zuvo is it is suitable for drinking water prep and it will suppsedly improve water quality to dump into my tank (currently I use only chemical clorine remover and NOTHING else to treat fresh water prior to mixing with salt).
The customer service rep was not able to confirm if the unit removes phosphates, but did say it removes chlorine.
Also, he mentoned that models: 130, 120, 125 and 140 all have the same guts and differ only visually.