First, I don't think that a good RODI system has any use for UV. Look that up, but if that's the case then why trust someone who is trying to sell something you don't need. I and several others here bought from Aquasafe systems on ebay. Its a good system and reliable seller. I got the maximus which included PSI and
TDS meters and lots of extra filters for the same price.
eBay Store - The Aqua-Safe Pure Water Shop: Category 2, ACCESSORY ITEMS