Product review (5 stars): Exact Fit
If your refrigerator water or ice dispenser leaks then this is what you are looking for.  Despite the fact that it is installed at the bottom of the back of the refrigerator where the water line is, this stops the dispensers from leaking.  Was going to buy a new refrig because of the leaks, but after finding this part, I am back in the good graces of the wife...