I believe you are right about the redesign of the plastic one because I had to mix and match parts from the old and new water outlet so the hose would fit. Now its leaking. Guess what part I'm ordering next...When you get the water outlet, make sure you have another top hose handy. I remember reading about a redesign. The old hose may not fit the new outlet and may have to be replaced as well. Just be prepared for the possibility.