The Phonak Open Dome 4.0 L is a disposable medical-grade silicone covering that protects your hearing aid from wax, moisture, and debris. Phonak Open 4.0 L domes are suitable for medium to large size ear canals.

Phonak SDS 4.0 Open Domes feature a new and improved build-profile which help keep the dome piece comfortable and appropriately seated in your ear canal throughout the day. Phonak Open Domes are designed with ten miniature vent openings that allows a natural listening experience, and will not bend or collapse when inserted into the ear. 

Phonak SDS 4.0 Domes effortlessly attach to Phonak Marvel, Paradise, and Kirkland RIC hearing aids. Maximize hearing aid sound quality and speech clarity by replacing domes along with Cerushield Disk Wax Filters and Phonak 4.0 Retention Locks monthly, or when your hearing aid is blocked and stops working.  

Features

• Robust and reliable design
  
• Effortlessly attaches to hearing aid
• Will not bend, collapse, or tear
• Total of 10 large Phonak open domes per pack
• Compatible with Phonak, Unitron and Kirkland RIC hearing aids
• Original Phonak product in manufacturer-sealed packaging
  
• Product code: 054-0787