What are the deninsions accoss the widest part (top) mine is 9 mm's? I am trying to figure out the size I need (small, medium or large)?

small open approximately 5 mm medium open approx 7 mm large open appox 10 mm

Contact the Costco Hearing Center for the recommended dome for the 10.0

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🎧 Elevate your hearing game with comfort and clarity—because you deserve the best!

BULK PACK CONVENIENCE - Pack of 10 domes means you’re always prepared—never miss a beat.
PRECISION ENGINEERING - Perfectly sized Ø 6mm domes for secure, behind-the-ear fit that stays put.
SEAMLESS SOUND EXPERIENCE - Small open dome design ensures clear, natural hearing without occlusion.
HYGIENIC COMFORTABLE FIT - Soft silicone material offers all-day comfort and easy cleaning.
ECO CONSCIOUS RECHARGEABILITY - Compatible with rechargeable Phonak Marvel & Paradise aids for sustainable power.

Phonak, Unitron & Hansaton 4.0 Small Open Domes (Pack of 10) are precision-engineered silicone domes designed for use with the latest Phonak Paradise and Marvel rechargeable hearing aids. Sized at Ø 6mm for a natural, open sound experience, these skin-colored domes provide a comfortable, hygienic fit and come in a convenient pack of 10 to keep you ready for every day.

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€ 28.14

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Netherlandsstore

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Manufacturer	Phonak
Part number	GM-100A
Item Weight	2.83 g
Package Dimensions	6.3 x 2.11 x 0.41 cm; 2.83 g
Item model number	E104
Size	S - Ø 6mm
Colour	skin-coloured
Style	Behind-The-Ear
Material	Silicone
Power source type	Battery Powered
Special Features	Rechargeable
Batteries included?	No
Batteries Required?	No
Battery Cell Type	Polymer
tech_spec_battery_description_toys	Lithium-Polymer

Phonak, Unitron & Hansaton 4.0 Small Open Domes (Pack of 10)

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