Installed under sink plumbing, stub out was very short so hub of the wye is up against the back wall of the cabinet. Tried may different size but nothing seems to fit. 2" escutcheon won't work since this is going over the hub. Any thoughts? I believe the exterior diameter of a 2" pvc coupling is 2-11/16. Wondering if a 2.5" IPS escutcheon would work. What is the standard practice here?