Product review (3 stars): Not an exact replacement
By itself, this is a perfectly good splash guard, and it fit perfectly in my Sinkmaster 750 disposer. However, it lacks the inner lip that provided a snug seal against the original stopper. The stopper now just sits loosely on top of the splash guard and is only held in place by water pressure. The water slowly drains out, and the leakage will only get worse as the rubber in the splash guard ages.