Diaphragm and rim assemblies (for tunable technology) are available for the Master Cardiology, Cardiology III, Cardiology II S.E., Master Classic II, Classic II S.E. and Select.
Tunable Diaphragm and Rim Assembly for Littmann® Cardiology III (large side), Cardiology II S.E., Master Classic II, Classic II S.E. and Select Stethoscopes - Black rim
Tunable Diaphragm and Rim Assembly for Littmann® Cardiology III (large side), Cardiology II S.E., Master Classic II, Classic II S.E. and Select Stethoscopes - Grey rim