Genuine Phonak EasyGuard Vented Domes are the latest vented domes for compatible Phonak and Unitron RIC hearing aids. Their EasyGuard construction helps reduce wax ingress while providing a more closed acoustic fit than an open dome.SizesSmall, Medium and Large.How to chooseMatch the dome style and size already fitted to your hearing aid. If you're unsure, check your existing dome packaging or use our Compatibility Guide.CompatibilityFor compatible Phonak and Unitron RIC hearing aids using the current EasyGuard dome fitting. Match the dome style and size already fitted.MaintenanceCheck domes and wax protection regularly. For best hearing-aid performance and hygiene, we recommend replacing routine consumables around monthly, or sooner if blocked or damaged.Need help? Not sure which option you need? Send us a clear photo of your hearing aid and current accessory, call mi hearing on 01785 331560 or email [email protected] before ordering.