I'm looking for an acetelyne tip (not oxy-acetelyne, just acetelyne) that looks similar to a horse shoe. It has two tips and is meant for soldering large diameter pipe 1" or greater for boiler work. It works on the premise that you can heat both sides of the pipe. It came on a maroon handle and I think the company was subco. It's oldschool. Does this sound familiar to anyone? Anyone know where I can find this? I tried looking online but no luck