Product review (3 stars): Usable but.....
Fits my disposal fine but the rubber is very stiff and plugs up easily. The original was made of much softer rubber, probably why the original failed after only two years and I think the tabs were thinner allowing food to go down easily. I noticed from the start it doesn't drain well, I could run the water in the sink and see the water just pooling on top of the stopper. I took a leather punch to increased the size of the holes and add extra ones, better but not great. Just recently I took my kitchen shears and removed about a 1/16 - 1/8 inch of the rubber along each of the longer slits. Now it drains well but is still stiff as a board. As I originally bought two of these it will be several years before I'll need to buy it again and will probably go back to Waste King.