The Resound Surefit 3 receivers - MM(M&RIE), LP, MP and HP - are for use with Resound ONE hearing aids and they require new "1-rung" light grey domes.
Replacing ReSound SureFit 3 RIE receivers is not difficult just a bit fiddly, make sure you know what you are doing before you start! Can we suggest you watch the videos.
Please remember that RIE/RIC receivers have a wax filter which needs to be regularly replaced - when it gets 'bunged up' with wax the sound gets blocked!
ReSound Surefit 3 - LP, Low Power, RIE Receivers for Resound...
ReSound Surefit 3 - MP, Medium Power, RIE Receivers for Resound...
ReSound Surefit 3 - HP, High Power, RIE Receivers for Resound...
ReSound Surefit 3 - M&RIE, RIE Receivers for Resound ONE hearing...
"1-rung" Light Grey SureFit 3 Domes for use with ReSound Hearing...