You can buy mine off me. Its footprint fits perfectly on top of the rio pump that powers it. You would just need a 50 cent curved piece of pipe from homedepot cause I threw out the original but it is just the cheap clear pipe at HD. It has skimmed a 125 gal perfectly, I am asking $75. If you would take the exact measurements I can confirm the size. Hey, didn't I just buy an overflow from you?