Signia and Rexton are sister brands and share many of the same parts.
These QuickGuard wax guards are to be used with the Signia Insio AX hearing aids, Rexton BiCore Custom hearing aids, and the newer 3.0 earmolds for both AX and BiCore models.
If you are not sure if this is the wax guard you need, feel free to contact us and we will be happy to help!
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This is new, in the original packaging from the manufacturer.