Unger Rinse n’go Plus(upgraded “Plus “model) Spotless car, boat or window wash DI Water system NEW in box. Never used. Comes with two resin bags. One bag already installed from the factory inside the unit and a spare sealed bag in the box with all accessories. Deionized deionizer water system. If you hate water spots when washing your car then this is what you need. I bought it and never used it because I ended up buying another DI water tank system instead. This cost $180 if you were to buy it from any store. I’m only selling it for half price $90.