It is a new, dual action gravity feed by badger. I was kind of hesitant about purchasing it because it was, at one point, $400. I got it on amazon for $80. It had mostly positive reviews, and as far as I can tell it nice quality. It has an adjustment at the rear for paint release control which is pretty nice. The model is the Sotar 20/20 2F. Im sorry that I didn't give you guys the specs to begin with... Wasnt thinking. As for the thinner, I have been using the Createx Wicked Reducer that came with the primary color paint combo. I tried that, but didnt really notice a difference between that and water. I decided to do what DakotaLakesTackle on youtube does with his paint. He dumps a little bit out and fills it up a tad with water. He also uses createx wicked, so I thought it would be alright.