I have almost the same filter (2213 it looks the same) and saved the instructions, if you want I can scan them for you just pm me and it is no problem. It's easy to set up but at least the manual can let you know what you're missing. Momotaro is right, you are missing the hose and one connector (and I think it's there but make sure you have the endcap on the spraybar) Also there's a small green hard plastic piece that connects the spraybar and the "in" hose and a hard plastic curved piece that keeps the hose connected to the spraybar from kinking and of course you might want the suction cups too. It's not hard to set up, just be careful priming the pump when you get there if you do it by mouth. I didn't expect the water to come out so quickly, ended up with a mouthful of water, and an amused audience. If you can't find the parts online or around you, I know my LFS carries most eheim replacement parts or can order them for you. I can give you their website as well.