No, I have no idea how to design a pipe. That's a Jemco that fit like a turd and came new with a leak and a dent. I cut it in a couple places to get it to fit, welded the leak, '"improved" the dent, added a third spring hook and cleaned it all up with some fine grit paper. Then I used a propane torch to blue the welds and wiped it with WD-40.