As you can see from our picture, our impellers are grey in color and it is slightly different as compared to the Crathco / Grindmaster impeller. However, we have sold this impeller for many years and our impeller fits and works correctly in the intended application. Our impeller is a direct drop-in replacement for Crathco / Grindmaster part number 3587. Fits Bubbler Models: D112, D15, D25, D25-4, D35, D35-4, E27, E29, E47, E49