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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Phonak Small Open Dome 4.0 for Marvel Hearing aids

Product ID: 374363952

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Details

Brand
Phonak
Colour
Black
Material
Silicone
Model name
E104
Style
discreet

🆕Latest 4.0 open dome design

🎧Optimized for Marvel hearing aids

🔊10-pack for extended use

Description

🎧 Elevate your hearing game with Phonak’s sleek Small Open Dome 4.0!

BULK PACK CONVENIENCE - Includes 10 domes per pack, so you’re always ready with replacements or backups.
DISCREET COMFORTABLE - Small size ensures a barely-there feel, perfect for professionals who value subtlety and style.
EFFORTLESS MAINTENANCE - Easy to swap and clean, keeping your hearing aids performing at their best without hassle.
ADVANCED OPEN DOME DESIGN - 4.0 version offers superior comfort and natural sound experience, reducing occlusion effect.
SEAMLESS MARVEL COMPATIBILITY - Specifically engineered for the latest Marvel hearing aids, ensuring perfect fit and performance.

Phonak Small Open Dome 4.0 is a pack of 10 replacement domes designed exclusively for Marvel hearing aids, released in late 2018. This latest open dome design enhances comfort and sound quality, making it an essential upgrade for professionals seeking discreet, high-performance hearing solutions.

Specifications

ASIN	B07M95T5DR
ASIN	B07M95T5DR
Best Sellers Rank	#100,923 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #31 in Safety Ear Protection Accessories
Brand	Phonak
Customer Reviews	4.5 4.5 out of 5 stars (422)
Customer reviews	4.5 4.5 out of 5 stars (422)
Date First Available	2 May 2019
Is Discontinued By Manufacturer	No
Item model number	E104
Manufacturer	Sonova
Package Dimensions	6.3 x 2.11 x 0.41 cm; 2.83 g
Units	10 Count

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