I have a 6 stage Universal RO/DI unit from BRS 75 gal/day. It is 5 years old, but the membrane was changed a year or so ago and should be good for a few years. The DI Resin has a few inches of color left, but I am including a fresh pack of DI Resin that I had in case of need. I am including a Rubbermaid basin with a Kent float switch installed. It also comes with a TDS meter inline. $100, local pick up only, it is too heavy to ship and would not be worth it. I am willing to drive and hour or 2 from the Bronx to meet up.