I've been gathering up extra parts to set up a 32 Gallon community tank and I got out my old Fluval 203 that I got a long time ago and there's a pretty big crack in the side of the filter case. Everything else on the filter works fine but I can't find any replacement parts for the filter case. I found the part I need here, but I can't find any way to order it directly from Hagen. Is there any place where I can order that part?