I'm not sure which model this is but everything is in working order. You can use any pump to run this but a Danner 9.5 B comes with it. Dimensions are 24 high by 9 by 12 without the pump. I never installed the skimmer but was told it worked fine when last in use. From what I've read they are a respected brand with parts and support available. It's a unique air induction technique compared to most new era skimmers. http://www.lifereef.com/home.html. Asking $250.00