Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4825752.

The original gasket for the Surefeed MBOWL Stainless Steel Cup becomes brown and brittle over time losing the contact to the bowl. This model, printed out of TPU or TPE, can replace the old gasket. Because it fits tight over the bowls edge it is not necessary to use glue to fix it. Depending of the material you can downsize the model in X- and Y-direction (not in Z-direction!) to 98% for tighter fit.