This 3" x 40" Copper Reflux Moonshine Still Pipe comes with a 3" stainless steel tri clamp ferrule welded to one end. Also includes a 3" tri clamp and gasket. This is not a complete column. You can use this with some more copper pipe and some solder to build your own column. The 3" tri clamp ferrule will connect to any 3" moonshine still boiler with a 3" tri clamp connection. This copper pipe is type L, which is much heavier than the cheap type DWV or type M.