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

Phonak Unitron And Hansaton 4 0 Small Open Domes Pack

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Description

🦻 Elevate your hearing game with comfort and clarity—because every sound matters!

EASY MAINTENANCE - Simple cleaning instructions keep your domes fresh and your hearing crisp without hassle.
VALUE PACK OF 10 - Never run out—5 pairs in one pack keep your hearing aids performing at their best longer.
HYGIENIC DURABLE - Made from premium silicone, these domes resist earwax buildup and ensure clear sound transmission.
PERFECT FIT EVERY TIME - Small open domes designed for seamless comfort and secure attachment with your hearing aids.
UNIVERSAL COMPATIBILITY - Works flawlessly with Phonak Marvel, Paradise, Lumity, Infinio, Unitron & Kirkland receivers—one pack, multiple devices.

Phonak, Unitron & Hansaton 4.0 Small Open Domes come in a convenient pack of 10, crafted from durable silicone for superior sound isolation and hygiene. Compatible with multiple leading hearing aid models including Phonak Marvel and Unitron, these domes ensure a secure, comfortable fit and easy maintenance, making them an essential upgrade for professionals who demand clear, uninterrupted hearing.

Specifications

Asin	B07M95T5DR
Battery Cell Composition	Polymer
Battery Description	Lithium-Polymer
Best Sellers Rank	39,682 in Health & Personal Care (See Top 100 in Health & Personal Care) 59 in Hearing Aid Domes
Brand Name	Phonak
Colour	skin-coloured
Compatible Devices	Phonak Marvel hearing aids
Control Type	Button Control
Customer Reviews	4.5 4.5 out of 5 stars (25) 4.5 out of 5 stars
Fit Type	Behind-the-Ear
Global Trade Identification Number	07613275690390
Headphone Folding Features	Behind-The-Ear
Item Weight	0.1 Ounces
Manufacturer	Phonak
Material	Silicone
Model Name	E104
Model Number	E104
Noise Control	Sound Isolation
Number Of Items	10
Outer Material	Silicone
Part Number	GM-100A
Power Source	Battery Powered
Product Style	Behind-The-Ear
Rechargeable Batteries Included	Yes
Recommended Uses For Product	For use with Phonak Marvel hearing aids
Software Update Supported To Date	unknown
Special Features	Rechargeable
Strap Type	Over the ear
Unit Count	10.0 count

Reviews

User

Perfect size

Love these, much better for staying in my ear. Seem to collect much less wax as well

21.03.2026

User

as described.

Okay and fits well

6.04.2026

User

Great

Perfect

27.12.2025

User

Hearing aid plugs

Heating aid rubber seals, stops ear wax from blocking the sound. works well, and cheaper then Boots chemist ones

6.05.2026

User

Excellent product

Excellent product , it came very quickly, very well packaged .

23.02.2025

User

Small is only 6mm diameter

These are really small. Amazon you have failed to include 6mm measurement. Specification only has weight !

11.09.2026

User

Perfect sizing

Just right for my hearing aid.

7.02.2025

User

Very good

Very Good

22.02.2025

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Rp364199

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Sold byAmazon IndonesiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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TrustScore 4.5 | 7,300+ reviews

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

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Details

Description

Specifications

Reviews

Common Questions