u/Mimi-487

I purchased Jabra hearing aids in Sept 2024 from Costco. They were fine for about 18 months, using tulip eartips. Now I am getting a lot of feedback. I understand why. I tried the power domes, but they were very uncomfortable. I want to try a larger tulip dome. Costco only supplies one size, which is 11mm. Does anyone know where to find larger size tulip ear tips?