Bag of 10 Phonak 4.0 cap domes – one size only. Please note: these domes are only compatible with Phonak Audeo M (Marvel) receiver wires.

If your Phonak hearing aid is not an Audeo M (Marvel) product, you will need to select the older Open dome (now referred to as 3.0). There are also Phonak 4.0 Open, Vented, Power domes available.

Suggested replacement every 6 – 10 weeks, depending on use and maintenance. Always ensure that a new dome is pushed firmly onto the receiver wire before inserting into the ear.

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