I'm in the midst of a small bathroom redo and replaced the existing vanity with a pedestal, and now my p-trap and drain pipe are not aligned, and i have about 4 inches of vertical to make the connection from the p-trap to the drain pipe, the p-trap has a 1.5 ID male threaded end and the sink drain has 1.25 tailpipe is smooth. homedepot said to use a flex pipe that looks like the old flex straws i loved as a kid. is this the right part?