Phonak Cerustop Filter Single Pack

How do you use these wax traps?

Will these work in a unitron quantum 2 ite? paperwork says model is a 10. cannot find anything indicating whether or not the wax shield is a c-stop.

I have Phonak Naida S CRT IX hearing aids. Have had them for almost a year. Previously the batteries prescribed by my audiologist were lasting 7 to 10 days. Now I put fresh ones in in the morning and they are gone by the afternoon. Is anyone else having this problem? Have you fixed the problem? What did you do?

Will this work for CIC interton hearing aid?