Never used, absolutely brand new! Bought it and realized I needed a 5 stage. Comes with M-Model siphon gun, hose, 1.5mm and 1.3mm tips, manual etc. Price is more than fair and firm, almost $100 discount for you.
This is the exact kit I bought: https://www.amazon.com/gp/product/B00D4NPMJE/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1