Sonicare toothbrush replacement heads come in two models, Advance (A) or Elite (E) series.  In addition, you may choose Standard or Compact heads for each model.  For optimal performance, it is recommended that you replace your toothbrush heads every 6 months.

E-Series Replacement heads now fit Advance (A Series) toothbrush handles.  Now Advance users can enjoy the superior performance of the E Series brush head!